The Bus, the Solid Line and the Driver Behind

No - the arithmetic rules it out before you even consider the line marking.

• Closing speed: you at 60 km/h against a bus at 22 km/h gives a difference of 38 km/h, which is about 10.6 m/s.
• Time alongside: allowing for acceleration from a queue, you need roughly 8–10 seconds to pull out, build speed, pass the length of a service bus and return - that is 85–105 m of travel relative to the bus, plus the return gap. On a loaded car with three people and a full boot, acceleration is worse than normal.
• What 120 m of view really means: the oncoming car now visible over the crest is closing at about 16.7 m/s. Combined closure against you is roughly 27 m/s, so from the moment it appears you have about four seconds before you meet it. You cannot see past the crest at all, so you cannot know what is behind it.
• The line is solid for the whole 120 m, which prohibits crossing regardless of what you think you can see.
• The bus has just stopped for a passenger who stepped into the road - a manoeuvre starting behind a bus that may pull out again is exactly the wrong moment.
• Your loaded car lengthens braking and slows acceleration, and the tailgater behind you will follow you out if you go.

Verdict: wait. A clean view for the whole manoeuvre plus a margin, on a broken line, with no oncoming traffic and no bus stop in play.

Hold your position and refuse to let his impatience set your speed.

• Do not close up on the bus to create the illusion of progress. That buys you nothing and removes your braking buffer at exactly the point where the bus keeps stopping.
• Do not brake-check him. Flashing brake lights or a sharp tap is how a rear-end collision starts, and the reviewing officer will look at your brake lights.
• Ease off slightly instead. Increasing your own gap to the bus by a few metres means you can adjust speed gently, and it gives him less excuse to be right behind you.
• Be predictable: steady speed, early signals, no sudden lateral moves, and keep to the right of your lane so he has room to see past.
• Do not wave him past. You cannot see for him, and a wave is often read as a guarantee. If he overtakes across the solid line into oncoming traffic, ease off and open a gap so you are not drawn into his crash.
• Let him go. A driver 8 m from your bumper at 60 km/h has a stopping distance longer than that gap; the safest thing you can do is maximise your own margin and let his decisions be his.

A broken line is permission, not a licence - check each condition before committing.

1. Full view of the whole manoeuvre. You need to see the entire 400 m, including the approach to the hairpin, and be certain nothing is coming. Vehicles on hairpins cut corners; a car you cannot see yet can appear in your lane within a couple of seconds.
2. The bus is not about to stop or turn. Service buses on this road stop at unmarked pull-ins with no warning. If it is approaching a pull-in, indicating, or has passengers standing, the overtake can become a collision with a pedestrian.
3. Enough performance left. Loaded boot, two passengers, uphill gradient - your acceleration is reduced and your overtaking distance longer than it looks.
4. A margin to abort. You should be able to pull back in behind the bus with room to spare, not squeeze in because a car appeared.
5. Mirrors and blind spot checked, signal given, then commit decisively - a hesitant overtake that straddles the centre line is worse than no overtake.

If any of those fail, stay back. Buses stopping repeatedly actually create good opportunities: as the bus slows and pulls in, you get a clear view and a slow-moving vehicle to pass. Take that moment rather than forcing the 400 m.