Kenya NTSA Commercial Driving Test study materials
Kenya NTSA Commercial Driving Test study resources

Kenya NTSA Commercial Driving Test cheat sheet

Kenya NTSA Commercial Driving Test · Keep the key ideas within reach.

Quick reference

Traffic Signs

  • Sign classes in Kenya: warning (triangular, red border, yellow or white ground), regulatory/prohibitory (circular, red border), mandatory instruction (circular, blue ground), information (rectangular, blue or green ground).

  • Stop sign: red octagon with white 'STOP' - a full stop at the stop line is compulsory even when the road appears clear; rolling stops are an offence.

  • Give Way (Yield): inverted triangle; you must slow and yield to traffic on the major road, stopping only if necessary - unlike STOP, a complete stop is not always required.

  • Warning triangles warn of hazards ahead (bends, junctions, steep hills, pedestrian crossings, wild animals); they impose no legal prohibition but require reduced speed and readiness to stop.

  • Speed limit signs are circular with red border and black numerals on white; a circular sign with a red border and no numeral ends a previously signed limit and reverts to the default.

  • Blue circular signs are mandatory instructions (e.g. keep left, turn left ahead, minimum speed, route for pedestrians/cycles) - disobeying them is an offence.

  • Signs are placed on the left of the carriageway facing oncoming traffic; at night or in rain, sign recognition distance drops, so match speed to the distance you can see to be clear.

  • Temporary/roadworks signs (red-bordered triangles on portable stands, yellow-backed) override permanent markings and limits until the works are removed.

Quick reference

Road Markings and Signals

  • Broken white centre line: overtaking permitted when safe and sight distance allows; solid white centre line: no crossing or straddling, no overtaking.

  • Double solid lines (both sides) prohibit crossing by either direction; a solid line on your side with a broken line on the other means only traffic on the broken side may cross.

  • Yellow markings along the kerb indicate parking/stopping restrictions; continuous yellow line = no stopping at any time, broken yellow = restricted/limited-time stopping.

  • Zebra crossing: broad white stripes across the road; pedestrians on the crossing have absolute priority - stop before the crossing and do not overtake a vehicle stopped at one.

  • Stop line: solid white transverse line at junctions and signals - the vehicle must stop with its front behind this line, not on or over it.

  • Traffic lights: red = stop behind the line; amber alone = stop unless it is unsafe to do so; green = proceed only if the exit is clear; green arrow = protected movement in the arrow direction only.

  • Edge line and lane markings separate lanes of the same direction; changing lanes requires mirror checks, a signal, and a blind-spot check before moving.

  • A police officer's or authorised officer's signals override traffic lights and markings - obey the officer's arm and whistle signals above all other controls.

Quick reference

Traffic Rules and Right-of-Way

  • Kenya drives on the left; at uncontrolled junctions give way to traffic approaching from your right, and to vehicles already on the main road when joining from a minor road.

  • At a T-junction the through road has priority; vehicles emerging from the stem of the T must give way to both directions of the through road.

  • Roundabouts: give way to traffic already circulating (approaching from your right); signal left to exit, and do not change lanes on the circulatory carriageway.

  • Pedestrians on a zebra crossing or already crossing at a junction have priority; when turning into a side road you must give way to pedestrians crossing that side road.

  • Overtake on the right; never overtake at a zebra crossing, on a bend, on the crest of a hill, at a junction, or where a solid line prohibits it.

  • Emergency vehicles with siren/lights on have priority - do not follow closely behind them; pull over and stop where safe to let them pass.

  • Following distance rule: at least a 2-second gap in dry conditions, 4 seconds in rain or at night, and more when loaded or towing.

  • Stopping/ parking prohibitions: not within a zebra crossing approach, on a bend, at a bus stop, opposite a traffic island, or where you would block a junction or hydrant.

Quick reference

Vehicle Controls and Safe Driving Technique

  • Clutch use: engage smoothly at biting point before releasing the handbrake on a hill; do not ride the clutch or coast in neutral - coasting removes engine braking and reduces control.

  • Gear selection should match speed and load: descend long hills in a low gear to use engine braking; never coast downhill in neutral with a laden commercial vehicle.

  • Steering: pull-push (hand-over-hand not recommended for airbag vehicles); keep both hands on the rim except when changing gear or signalling.

  • Mirrors: set so a sliver of your own vehicle is visible; use mirror–signal–manoeuvre sequence and check the blind spot physically before moving off or changing lanes.

  • Braking in a laden vehicle: brake earlier and progressively; brake fade on long descents is prevented by low gear and intermittent braking, not continuous pedal pressure.

  • Reversing a large vehicle: use a banksman/helper where available, reverse slowly, and remember the rear swings out - check both sides and behind before and during the manoeuvre.

  • Skids: release braking, steer into the skid direction, and avoid harsh acceleration; ABS vehicles require firm continuous pedal pressure without pumping.

  • Night driving: dip headlights for oncoming traffic and when following; do not dazzle; reduce speed so you can stop within the lit distance.

Quick reference

Road Safety and Defensive Driving

  • Defensive driving core: anticipate the errors of others, maintain a space cushion on all sides, and always have an escape route identified.

  • Hazard hierarchy for scanning: far distance, mid distance, near distance, instruments and mirrors - check mirrors every 5–8 seconds in traffic.

  • The 'only a fool breaks the 2-second rule' test: pick a fixed object; if you reach it before counting two seconds after the vehicle ahead passes it, you are too close.

  • Speed must be adjusted to conditions, not just the limit: rain, gravel, mud, darkness, load weight and visibility all reduce safe speed below the posted maximum.

  • Blind spots exist on all commercial vehicles; when overtaking a lorry or bus, do not linger alongside - pass decisively or stay back where the driver can see you.

  • Pedestrian and vulnerable road user protection: expect children near schools, drunk or distracted pedestrians, boda-bodas filtering, and animals on rural roads.

  • Junction discipline: approach at a speed that lets you stop, look right–left–right (left first in left-hand traffic), and never enter a junction you cannot clear.

  • Fatigue and distraction are collision causes: a micro-sleep of 4 seconds at 80 km/h covers about 90 metres with no control input.

Quick reference

Commercial Vehicle Pre-Trip Inspection and Vehicle Condition

  • Daily walk-around must cover: tyres (tread depth, pressure, cuts, bulges, dual spacing), wheel nuts and indicators, lights and reflectors, mirrors, wipers, horn, and number plates.

  • Fluids and mechanicals: engine oil, coolant, brake fluid, clutch fluid, power steering fluid, washer fluid, fuel level; check for leaks under the vehicle.

  • Brake check: air pressure builds and holds (for air-brake vehicles, check the low-pressure warning and that pressure does not drop when the engine is off), plus a low-speed brake test.

  • Load security: tarpaulin and ropes/chains tight, tailgate and side gates latched, load within the permitted height, width, length and gross vehicle weight.

  • Tyres: legal minimum tread depth in Kenya is 1.6 mm across the central three-quarters of the tread; no cuts exposing cords, no regrooved or retreaded passenger-car tyres.

  • Documents and equipment carried: driving licence, insurance certificate, inspection certificate, logbook/records as applicable, warning triangle, fire extinguisher, first-aid kit, jack and wheel brace.

  • Passenger service vehicles: check doors open and close and emergency exits function, seats are secure, aisle is clear, and the first-aid kit and fire extinguisher are present and in date.

  • Defect reporting: any defect affecting safety must be recorded and reported to the operator before the vehicle is used; a vehicle with a dangerous defect must not be driven.

Quick reference

Passenger and Cargo Safety (PSV and Goods Transport)

  • PSV load limit is passengers, not space: never carry more than the seating/standing capacity stated on the vehicle's licence; overloading is an offence and voids insurance cover for the excess.

  • Passenger safety duties: doors closed before moving, passengers seated or holding on, no boarding/alighting while moving, no standing in prohibited areas, luggage stowed so it cannot become a projectile.

  • Commercial goods loading: distribute weight evenly, keep the centre of gravity low, secure against forward, rearward and sideways movement, and never exceed axle or gross weight ratings.

  • Projecting loads must be marked and, where required, flagged; long loads need proper support and warning to other road users, especially at night.

  • Hazardous goods require correct placarding, compatible segregation, trained driver, and firefighting equipment appropriate to the substance class.

  • Passenger conduct: the driver may refuse to carry a passenger who is violent, intoxicated or carrying prohibited goods, and must stop to set down a passenger in an emergency.

  • School and vulnerable passengers: no child in the front seat where prohibited, count passengers on and off, and never leave passengers locked in a vehicle.

  • Overloading effects: longer stopping distance, tyre and brake overheating, poor steering response, and higher rollover risk on bends - reduce speed and increase following gap.

Quick reference

Kenya Traffic Act, Licensing and Operator Obligations

  • Driving without a valid licence for the class of vehicle, or driving while disqualified, is an offence under the Traffic Act; the licence must be carried and produced on demand to a police officer.

  • Third-party insurance is compulsory for every motor vehicle used on a road; driving uninsured is an offence and the owner may also be liable.

  • Vehicle inspection: commercial/PSV vehicles must pass periodic inspection and display a valid inspection certificate; a vehicle with an expired certificate should not be operated.

  • Duty after an accident: stop, render assistance, exchange details, and report to the nearest police station within 24 hours where injury, death or damage to property/animal occurs.

  • Penalties: traffic offences attract fines, demerit points, licence suspension or disqualification, and imprisonment for serious offences such as causing death by dangerous driving.

  • Operator obligations: maintain vehicles in roadworthy condition, keep maintenance records, ensure drivers are licensed and fit, and not require or permit a driver to breach hours or speed limits.

  • Police powers: an officer may require production of documents, direct traffic, require a vehicle to be weighed, and arrest without warrant for certain traffic offences.

  • Registration and identification: vehicles must be registered, display valid number plates, and have a current road licence (where applicable) - obscuring or altering plates is an offence.

Quick reference

Emergency Procedures

  • Breakdown on the road: move as far off the carriageway as possible, switch on hazard lights, place a warning triangle at a safe distance behind (further on fast roads or at night), and get occupants to a safe place away from traffic.

  • Brake failure: pump the pedal if hydraulic, downshift progressively, use the handbrake gently, and use a safe escape route or run-off; do not switch off the engine while moving if it removes power steering/brakes.

  • Tyre blowout: grip the wheel firmly, do not brake hard, ease off the accelerator, let the vehicle slow, then steer to a safe stop; sudden braking can cause a spin.

  • Fire: stop, switch off the engine, get everyone out and upwind, use the extinguisher only on a small fire, and never open a bonnet fully on an engine fire - call emergency services.

  • Vehicle in water or flood: do not attempt to drive through fast-moving water; if stalled in rising water, exit through a window and move to higher ground.

  • Emergency numbers in Kenya: 999 or 112 for police, fire and ambulance; give location, number of casualties, and hazards clearly.

  • Scene protection: hazard lights, warning triangle, and reflective clothing at night; do not create a second collision by standing in the carriageway.

  • Runaway or stuck accelerator: shift to neutral, brake firmly, steer to a safe place and switch off the ignition only once stopped or as a last resort.

Quick reference

First Aid and Incident Response

  • Primary survey DRABC: Danger, Response, Airway, Breathing, Circulation - check danger to yourself first, then responsiveness and breathing.

  • Recovery position: for an unconscious but breathing casualty, place on the side to keep the airway clear; do not move a suspected spinal injury casualty unless there is immediate danger.

  • Severe bleeding: apply direct pressure with a clean dressing, elevate if possible, and do not remove an embedded object - pad around it.

  • Burns: cool with clean running water for at least 20 minutes, do not burst blisters or apply oils/ice, and cover with a clean non-stick dressing.

  • Fractures: immobilise in the position found, support with padding, and do not attempt to straighten a limb; treat for shock (keep warm, reassure, do not give food or drink).

  • CPR for an adult: 30 chest compressions (about 5–6 cm deep, 100–120 per minute) to 2 rescue breaths; continue until help arrives or the casualty recovers.

  • Incident scene: switch off ignitions, do not smoke near fuel, keep bystanders back, and record details of vehicles, injuries and witnesses for the police report.

  • Do not move a casualty unless there is fire, traffic or other immediate danger; suspected neck or back injury requires the head and neck to be kept still.

Quick reference

Driver Fitness, Fatigue, Alcohol and Drug Rules

  • Alcohol: the legal blood alcohol limit in Kenya is 80 mg per 100 ml of blood (0.08%); driving above it is an offence, and any alcohol impairs judgement and reaction time.

  • Drugs: driving under the influence of drugs, including some medicines that cause drowsiness, is an offence; read medicine labels and do not drive if warned.

  • Fatigue rule: take a break at least every 2 hours of driving, and stop at the first signs of yawning, heavy eyes, drifting or poor concentration - do not rely on coffee or fresh air.

  • Rest before driving: commercial drivers should have adequate sleep before a shift; driving after 17–19 hours awake impairs performance comparably to being over the drink-drive limit.

  • Medical fitness: a driver must be medically fit; epilepsy, uncontrolled diabetes, severe visual impairment and certain heart conditions must be declared and may restrict licensing.

  • Vision: you must meet the minimum visual acuity standard and wear prescribed corrective lenses when driving; keep windscreen, mirrors and glasses clean.

  • Illness and medication: do not drive when unwell enough to impair control; check with a pharmacist or doctor about sedating antihistamines and similar medicines.

  • Enforcement: police may require a breath, blood or urine test on reasonable suspicion; refusing a lawful test is itself an offence.

Quick reference

Traffic Signs - Additional Detail

  • Warning sign shapes and colours: equilateral triangle with red border, white or yellow ground, black symbol - placed in advance of the hazard, not at it.

  • Regulatory prohibitory signs: red circle with a diagonal red bar over the symbol means 'no' (no entry, no parking, no overtaking, no U-turn).

  • Information and direction signs: green for primary routes/destinations, blue for motorway-style and local information, brown for tourist/amenity signs; they guide but do not prohibit.

  • Roadworks and school signs: temporary yellow-backed signs and school warning signs require an immediate speed reduction and extra vigilance for children and workers.

  • Level crossing signs: warning triangle with a train symbol and, where present, a St Andrew's cross - stop if lights flash or barriers are down; never race a train.

  • Traffic-calming and hazard markers: chevron boards on bends, bollards with reflectors, and rumble strips warn of alignment changes - slow before, not on, the hazard.

  • Sign recognition at speed: at 80 km/h you cover about 22 m per second; sign reading and reaction need the sign to be seen well ahead, so scan far down the road.

  • Damaged or obscured signs: report to the relevant road authority; do not rely on a sign you cannot read - treat the location as an uncontrolled hazard.

Quick reference

Road Markings - Additional Detail

  • Box junction (yellow criss-cross): do not enter unless your exit is clear, except when turning right and only blocked by oncoming traffic.

  • Hatched areas bounded by solid lines must not be entered; hatched areas with broken edges may be entered only if necessary and safe.

  • Lane arrows: straight-ahead, left-turn and right-turn arrows indicate permitted movements - get in the correct lane early and do not change at the stop line.

  • Bus stop and loading markings: yellow zig-zags or boxes mean no stopping; keep clear so buses and goods vehicles can load safely.

  • Cycle and pedestrian markings: cycle lanes and advanced stop lines for cyclists must be respected; do not stop in the cycle box at signals.

  • Temporary markings at roadworks override permanent ones; white or yellow temporary lines and cones define the lane you must follow.

  • Reflective road studs: white for lane lines, red for the left edge, amber for the central reservation - use them to hold your lane at night.

  • Marking deterioration: worn or obscured markings should be treated as if present - if in doubt, keep left and do not cross a line you cannot clearly identify.

Quick reference

Right-of-Way - Additional Detail

  • Uncontrolled crossroads: no signs mean no priority - approach slowly, give way to the right, and make eye contact before proceeding.

  • Turning across oncoming traffic: a right turn in left-hand traffic must give way to oncoming vehicles going straight or turning left; do not cut the corner.

  • Merging from a slip road: match speed, signal, and give way to traffic already on the main carriageway; do not force a merge.

  • Buses leaving stops and emergency vehicles: give priority where safe, but never brake suddenly or swerve to do so.

  • Narrow bridges and single-track roads: the vehicle already on the bridge or the larger/heavier vehicle may have priority - slow, and use passing places.

  • Pedestrian priority at junctions: when turning, pedestrians crossing the road you are entering have priority; stop and wait rather than edge through.

  • Animals and livestock: give way to livestock and horses, slow down, do not sound the horn, and leave plenty of room.

  • Railway and drawbridge crossings: stop when warned; never enter until the exit is clear and the way is signalled safe.

Quick reference

Vehicle Controls - Additional Detail

  • Pre-drive cockpit drill: seat position, mirrors, seatbelt, head restraint, gear in neutral, handbrake on, then start - adjust everything before moving.

  • Hill start: clutch to biting point, hold with handbrake, add power, release handbrake smoothly - prevents rollback into the vehicle behind.

  • Engine braking: use a lower gear on descents to control speed without overheating the brakes; do not coast in neutral.

  • ABS and EBS: on commercial vehicles, ABS prevents wheel lock; EBS adds stability control - brake firmly and steer, do not pump the pedal.

  • Retarder and exhaust brake: use auxiliary braking systems on long descents to save the service brakes; check they are working before a hill.

  • Load and tyre pressure: under-inflation increases heat and the risk of a blowout under load; check pressures cold and adjust for load per the manufacturer's figures.

  • Trailer coupling: check the fifth wheel or drawbar, air lines, electrical connection, safety chains and landing legs before moving off.

  • Reversing and manoeuvring: use a banksman, check behind and both sides, and remember that a long vehicle's rear swings out in the opposite direction to the steer.

Quick reference

Defensive Driving - Additional Detail

  • Space cushion: keep a gap ahead, beside and behind; if a tailgater closes behind, increase your own following distance to allow gentler braking.

  • Scanning pattern: look 12–15 seconds ahead in town and further on open roads; check mirrors every 5–8 seconds and before any change of speed or direction.

  • Hazard perception rule: identify the hazard, decide the safe action, and act early - late decisions force harsh braking and increase collision risk.

  • Overtaking decision: only overtake when you can see the whole manoeuvre is clear, you have the power to complete it, and no solid line or junction forbids it.

  • Wet and gravel roads: stopping distances roughly double on wet roads; reduce speed, increase gaps, and avoid sudden steering or braking.

  • Boda-boda and motorcycle awareness: they filter, change lanes unpredictably and are hard to see - check blind spots twice and give them room.

  • Night and glare: slow down, look to the left edge of the road when dazzled, and never retaliate against another driver's bad behaviour.

  • Distraction rule: no phone use, no eating, no adjusting devices while moving - a 2-second glance at 50 km/h covers about 28 metres blind.

Quick reference

Pre-Trip Inspection - Additional Detail

  • Tyre checks: tread depth at or above 1.6 mm, correct cold pressure, no cuts, bulges or exposed cords, and adequate spacing between dual tyres to avoid rubbing.

  • Wheel and hub checks: wheel nuts and indicators present and tight, no cracks in rims, no oil or grease leaks at the hubs.

  • Lighting check: headlights (dip and main), side lights, indicators, brake lights, reversing lights, hazard lights, reflectors and number-plate lamp all working.

  • Brake system check: fluid level, no leaks, pedal feel firm and not spongy, handbrake holds on a slope; air-brake vehicles must build and hold pressure.

  • Steering and suspension: no excessive play in the steering wheel, no unusual noises, no broken springs or leaking shock absorbers.

  • Visibility checks: windscreen free of cracks in the driver's line of sight, wipers and washers working, mirrors secure and correctly adjusted, demister working.

  • Emergency equipment: warning triangle, fire extinguisher in date, first-aid kit complete, jack, wheel brace and spare wheel serviceable.

  • Documentation check: valid licence for the class, insurance, inspection certificate, and any permits required for the load or route.

Quick reference

Passenger and Cargo Safety - Additional Detail

  • Seat capacity: the number of passengers must not exceed the licensed capacity shown on the vehicle; standing passengers only where permitted.

  • Securing loads: use rated straps, chains or ropes; check tension after the first few kilometres and at rest stops, because loads settle.

  • Weight distribution: keep the heaviest items low and centred over the axles; an uneven load reduces steering and braking stability.

  • Tailgate and doors: latched and secured before moving; a load that shifts rearward can make the vehicle unstable at speed.

  • Passenger boarding: stop in a safe place, let passengers alight and board clear of traffic, and do not move until doors are closed and passengers are seated.

  • Hazardous loads: correct placards, segregation of incompatible goods, a fire extinguisher appropriate to the class, and a driver trained for the substance.

  • Livestock transport: adequate ventilation, secure penning, no overcrowding, and a driving style that avoids sudden braking and sharp turns.

  • Emergency evacuation: know how to open emergency exits and how to help passengers out; keep aisles and exits clear of luggage at all times.

Quick reference

Traffic Act and Licensing - Additional Detail

  • Licence classes: the licence must cover the class of vehicle driven; driving a class you are not licensed for is an offence even if you hold another class.

  • Learner and provisional driving: a learner must be accompanied by a qualified driver and display learner identification where required.

  • Insurance: third-party cover is the legal minimum; comprehensive cover is a contract matter, and insurers may refuse claims where the vehicle was unroadworthy or overloaded.

  • Inspection certificate: commercial and PSV vehicles must be presented for periodic inspection; operating with an expired or failed certificate is an offence.

  • Accident reporting: stop, give assistance, exchange names and addresses, and report to police within 24 hours where there is injury, death or damage.

  • Demerit points and disqualification: accumulation of offences can lead to suspension or disqualification; driving while disqualified is a serious offence.

  • Operator duties: keep vehicles roadworthy, keep maintenance records, ensure drivers are licensed and rested, and do not reward or require speeding.

  • Police powers: production of documents, direction of traffic, weighing of vehicles, and arrest without warrant for specified traffic offences.

Quick reference

Emergency Procedures - Additional Detail

  • Hazard lights and triangle: switch on hazards, place the triangle behind the vehicle on the same side as the traffic flow, and stand clear of the carriageway.

  • Steering failure: hold the wheel firmly, slow gradually by easing off the accelerator and using the brakes gently, and warn others with hazards and horn.

  • Engine fire: stop, switch off the engine, evacuate, and do not fully open the bonnet - use the extinguisher through the grille or a gap.

  • Collision with a pedestrian or cyclist: stop immediately, give first aid, call 999/112, and do not leave the scene until it is lawful to do so.

  • Vehicle in a flood: do not enter moving water; if water rises around a stalled vehicle, exit through a window and move to higher ground.

  • Towing and recovery: use rated equipment, a competent operator, and keep people clear of the line; never use a non-rated rope.

  • Communication: give the emergency operator the exact location, number of casualties, hazards (fuel, fire, live traffic) and your call-back number.

  • Post-incident: preserve the scene where possible, record details, and report the incident to the operator and insurer.

Quick reference

First Aid - Additional Detail

  • DRABC sequence: Danger, Response, Airway, Breathing, Circulation - assess and act in that order, and call for help early.

  • Recovery position: unconscious but breathing casualties go on their side with the airway clear; monitor breathing until help arrives.

  • Bleeding control: direct pressure with a clean dressing, elevate if possible, and pad around embedded objects rather than removing them.

  • Burns: cool with clean running water for at least 20 minutes, do not burst blisters, and cover with a clean non-stick dressing.

  • Fractures and shock: immobilise in the position found, keep the casualty warm, reassure them, and do not give food or drink.

  • CPR: 30 compressions to 2 breaths, compressions 5–6 cm deep at 100–120 per minute, continuing until help arrives or the casualty recovers.

  • Spinal precautions: keep the head and neck still and do not move the casualty unless there is immediate danger such as fire or traffic.

  • Scene safety: switch off ignitions, do not smoke near fuel, keep bystanders back, and record vehicle, injury and witness details for the police.

Quick reference

Fatigue, Alcohol and Drugs - Additional Detail

  • Alcohol limit: 80 mg per 100 ml of blood (0.08%) is the legal maximum in Kenya; above it is an offence, and any alcohol impairs judgement.

  • Drugs and medicines: driving under the influence of drugs is an offence; sedating antihistamines and some painkillers impair driving - read the label.

  • Fatigue breaks: stop at least every 2 hours, and stop immediately at the first signs of yawning, heavy eyes, drifting or poor concentration.

  • Sleep debt: driving after 17–19 hours awake impairs performance comparably to being over the drink-drive limit; sleep is the only remedy.

  • Medical fitness: declare epilepsy, uncontrolled diabetes, severe visual impairment and certain heart conditions; they may restrict or end licensing.

  • Vision: meet the minimum visual acuity standard, wear prescribed lenses, and keep windscreen, mirrors and glasses clean.

  • Testing: police may require a breath, blood or urine test on reasonable suspicion; refusing a lawful test is itself an offence.

  • Shift planning: plan rest breaks, avoid driving in the early hours when the body clock is lowest, and share driving where possible.

Quick reference

Signs and Signals Combined

  • Hierarchy of control: police officer's signals override traffic lights, which override road markings, which override signs - obey the highest authority present.

  • Amber alone means stop unless it is unsafe to do so; amber with a green arrow means the arrow movement may proceed.

  • Flashing amber at a pelican crossing means give way to pedestrians on the crossing; flashing red at a level crossing means stop.

  • Green means proceed only if the exit beyond the signal is clear - do not block a junction or box junction.

  • Zebra crossing beacons: flashing yellow globes mean pedestrians have priority; stop before the crossing and do not overtake a vehicle stopped at one.

  • School crossing patrols and authorised flag persons have authority to stop traffic - obey their signals as you would a red light.

  • Temporary signals at roadworks override permanent signals; follow the temporary lights and the cones, not the old markings.

  • Hand and arm signals by drivers supplement, but do not replace, vehicle indicators - signal early and cancel afterwards.

Quick reference

Markings and Lane Discipline

  • Lane discipline: keep left except when overtaking, turning right or in a lane marked for another movement; do not straddle lanes.

  • Solid white line: no crossing or overtaking; broken white line: cross only when safe and sight distance allows.

  • Double solid lines prohibit crossing by either direction; solid on your side with broken on the other means only the broken side may cross.

  • Box junction: do not enter unless the exit is clear, except when turning right and only blocked by oncoming traffic.

  • Hatched areas with solid borders must not be entered; those with broken borders may be entered only if necessary and safe.

  • Yellow kerb lines: continuous means no stopping at any time; broken means restricted or limited-time stopping.

  • Stop line: stop with the front of the vehicle behind the line, not on or over it, at signals and junctions.

  • Cycle boxes and advanced stop lines: do not stop in the cycle box at signals; give cyclists room at junctions.

Quick reference

Right-of-Way at Junctions

  • Uncontrolled crossroads: no signs mean no priority - approach slowly, give way to the right, and make eye contact before proceeding.

  • T-junction: the through road has priority; vehicles emerging from the stem must give way to both directions.

  • Roundabout: give way to traffic already circulating (approaching from your right); signal left to exit and do not change lanes on the circulatory carriageway.

  • Right turn: give way to oncoming vehicles going straight or turning left; do not cut the corner.

  • Slip road merge: match speed, signal, and give way to traffic already on the main carriageway.

  • Pedestrians at junctions: when turning, pedestrians crossing the road you are entering have priority - stop and wait.

  • Emergency vehicles: give priority where safe; do not brake suddenly or swerve to do so.

  • Narrow bridges and single-track roads: slow down, use passing places, and give way to the vehicle already on the bridge or the larger vehicle where safe.

Quick reference

Vehicle Controls and Load Handling

  • Pre-drive cockpit drill: seat, mirrors, seatbelt, head restraint, gear in neutral, handbrake on - adjust everything before moving.

  • Hill start: clutch to biting point, hold with handbrake, add power, release handbrake smoothly to prevent rollback.

  • Engine braking: use a lower gear on descents to control speed without overheating the brakes; never coast in neutral.

  • ABS and EBS: brake firmly and steer, do not pump the pedal; ABS prevents wheel lock and EBS adds stability control.

  • Auxiliary braking: use retarder or exhaust brake on long descents to save the service brakes; check they work before a hill.

  • Tyre pressure: check cold and adjust for load per the manufacturer's figures; under-inflation increases heat and blowout risk.

  • Trailer coupling: check fifth wheel or drawbar, air lines, electrical connection, safety chains and landing legs before moving off.

  • Reversing: use a banksman, check behind and both sides, and remember the rear of a long vehicle swings out opposite to the steer.

Quick reference

Defensive Driving and Hazard Perception

  • Space cushion: keep a gap ahead, beside and behind; if a tailgater closes behind, increase your own following distance to allow gentler braking.

  • Scanning: look 12–15 seconds ahead in town and further on open roads; check mirrors every 5–8 seconds and before any change of speed or direction.

  • Hazard perception: identify the hazard, decide the safe action, and act early - late decisions force harsh braking.

  • Overtaking: only when the whole manoeuvre is clear, you have the power to complete it, and no solid line or junction forbids it.

  • Wet and gravel roads: stopping distances roughly double on wet roads; reduce speed, increase gaps, avoid sudden steering or braking.

  • Boda-boda awareness: they filter, change lanes unpredictably and are hard to see - check blind spots twice and give them room.

  • Night and glare: slow down, look to the left edge of the road when dazzled, and never retaliate against bad behaviour.

  • Distraction: no phone use, eating or adjusting devices while moving - a 2-second glance at 50 km/h covers about 28 metres blind.

Quick reference

Pre-Trip Inspection Checklist

  • Tyres: tread depth at or above 1.6 mm, correct cold pressure, no cuts, bulges or exposed cords, adequate dual-tyre spacing.

  • Wheels: wheel nuts and indicators present and tight, no cracks in rims, no oil or grease leaks at the hubs.

  • Lights: headlights (dip and main), side lights, indicators, brake lights, reversing lights, hazards, reflectors and number-plate lamp all working.

  • Brakes: fluid level, no leaks, pedal firm and not spongy, handbrake holds on a slope; air-brake vehicles must build and hold pressure.

  • Steering and suspension: no excessive play, no unusual noises, no broken springs or leaking shock absorbers.

  • Visibility: windscreen free of cracks in the driver's line of sight, wipers and washers working, mirrors secure and adjusted, demister working.

  • Emergency equipment: warning triangle, fire extinguisher in date, first-aid kit complete, jack, wheel brace and spare wheel serviceable.

  • Documents: valid licence for the class, insurance, inspection certificate, and any permits required for the load or route.

Quick reference

Passenger and Cargo Safety Rules

  • Seat capacity: passengers must not exceed the licensed capacity; standing passengers only where permitted.

  • Load security: use rated straps, chains or ropes; check tension after the first few kilometres and at rest stops because loads settle.

  • Weight distribution: keep the heaviest items low and centred over the axles; an uneven load reduces steering and braking stability.

  • Doors and tailgate: latched and secured before moving; a load that shifts rearward can make the vehicle unstable at speed.

  • Boarding: stop in a safe place, let passengers alight and board clear of traffic, and do not move until doors are closed and passengers are seated.

  • Hazardous loads: correct placards, segregation of incompatible goods, a fire extinguisher appropriate to the class, and a trained driver.

  • Livestock: adequate ventilation, secure penning, no overcrowding, and a driving style that avoids sudden braking and sharp turns.

  • Evacuation: know how to open emergency exits and keep aisles and exits clear of luggage at all times.

Quick reference

Traffic Act and Operator Duties

  • Licence classes: the licence must cover the class of vehicle driven; driving an unlicensed class is an offence even if you hold another class.

  • Learner driving: a learner must be accompanied by a qualified driver and display learner identification where required.

  • Insurance: third-party cover is the legal minimum; insurers may refuse claims where the vehicle was unroadworthy or overloaded.

  • Inspection certificate: commercial and PSV vehicles must pass periodic inspection; operating with an expired or failed certificate is an offence.

  • Accident reporting: stop, assist, exchange names and addresses, and report to police within 24 hours where there is injury, death or damage.

  • Demerit points: accumulation of offences can lead to suspension or disqualification; driving while disqualified is a serious offence.

  • Operator duties: keep vehicles roadworthy, keep maintenance records, ensure drivers are licensed and rested, and do not require or reward speeding.

  • Police powers: production of documents, direction of traffic, weighing of vehicles, and arrest without warrant for specified traffic offences.

Quick reference

Emergency Response and First Aid

  • Breakdown: move off the carriageway, switch on hazards, place a warning triangle behind, and get occupants to a safe place away from traffic.

  • Brake failure: pump the pedal if hydraulic, downshift, use the handbrake gently, and use a safe escape route; do not switch off the engine while moving if it removes power assistance.

  • Blowout: grip the wheel firmly, do not brake hard, ease off the accelerator, let the vehicle slow, then steer to a safe stop.

  • Fire: stop, switch off the engine, evacuate upwind, use the extinguisher only on a small fire, and never fully open the bonnet on an engine fire.

  • Flood: do not drive through fast-moving water; if stalled in rising water, exit through a window and move to higher ground.

  • Emergency numbers: 999 or 112 for police, fire and ambulance; give location, casualties, hazards and a call-back number.

  • DRABC: Danger, Response, Airway, Breathing, Circulation - assess and act in that order and call for help early.

  • Recovery position and CPR: unconscious but breathing casualties go on their side; CPR is 30 compressions to 2 breaths at 100–120 per minute.

Quick reference

Driver Fitness and Impairment Rules

  • Alcohol limit: 80 mg per 100 ml of blood (0.08%) is the legal maximum in Kenya; above it is an offence, and any alcohol impairs judgement.

  • Drugs and medicines: driving under the influence of drugs is an offence; sedating antihistamines and some painkillers impair driving - read the label.

  • Fatigue breaks: stop at least every 2 hours and stop immediately at the first signs of yawning, heavy eyes, drifting or poor concentration.

  • Sleep debt: driving after 17–19 hours awake impairs performance comparably to being over the drink-drive limit; sleep is the only remedy.

  • Medical fitness: declare epilepsy, uncontrolled diabetes, severe visual impairment and certain heart conditions; they may restrict or end licensing.

  • Vision: meet the minimum visual acuity standard, wear prescribed lenses, and keep windscreen, mirrors and glasses clean.

  • Testing: police may require a breath, blood or urine test on reasonable suspicion; refusing a lawful test is itself an offence.

  • Shift planning: plan rest breaks, avoid driving in the early hours when the body clock is lowest, and share driving where possible.