IMSA Traffic Signal III study plan

Identify each of the eight traffic signal warrants and list the field data required to evaluate it

Compute volume-based warrant thresholds for a four-leg intersection from supplied turning-movement counts

Calculate yellow change and all-red clearance intervals from approach speed, grade, and reaction time

Assemble a 25-item signal plan review checklist covering geometry, phasing, display arrangement, and clearance intervals

Verify signal head mounting height, lateral offset, and visibility criteria against standard requirements

Check pedestrian provisions: accessibIe pedestrian signals, pushbutton placement, curb ramp alignment, and crossing time

Apply roadside safety and clear-zone provisions when reviewing pole placement and foundation location

Write review comments that each cite a specific code, standard, or ordinance reference

Configure a controller for phases, rings, overlaps, recall, and conditional service

Build a coordinated timing plan including cycle length, splits, offsets, and pedestrian intervals

Select and lay out vehicle detection technology, including placement and sizing for loops or above-ground sensors

Specify a communications path with bandwidth, latency, and redundancy requirements

Trace cabinet wiring from controller inputs and outputs through load switches, conflict monitor, and flash transfer

Verify conflict monitor programming and flash operation against the approved timing plan

Sequence installation activities from foundation and conduit through pole erection and head mounting

Distinguish inspection hold points from continuous observation points during installation

Compute conduit sizing, pull box spacing, and conductor fill for a signal interconnect run

Specify pole foundation and mast arm requirements including soil, wind, and vibration considerations

Write grounding, bonding, and surge protection requirements for the cabinet and pole assemblies

Develop acceptance testing procedures covering point-to-point checks, loop measurements, flash test, and burn-in

Diagnose common field faults including detection failure, flash operation, communication loss, and conflict flash

Build a preventive maintenance calendar with inspection intervals by asset type

Evaluate a request for timing modification and justify the decision with field and volume data

Apply asset management practices: inventory, condition rating, and replacement prioritization

Design a temporary traffic control plan for signal work in accordance with Part 6 temporary traffic control requirements

Specify pedestrian and bicyclist accommodation through the work zone

Apply nighttime visibility, flagger, buffer space, and taper length requirements

Write the signal outage, dark mode, and emergency response procedure

Complete two timed full-length practice exams and score each by domain

Rebuild notes on the five lowest-scoring subtopics identified by those exams

Re-solve every missed item and state the underlying rule or standard that governs it