Cab gets my vote by default

[Grahamm]

[quote author=Grahamm link=topic=18810.msg217556#msg217556 date=1448846959]
If a pedestrian has set foot on a zebra crossing, they have priority and traffic must stop for them.

This isn't how the highway code is set, and a mistake too many people make-
Zebra crossings are a two way thing, pedestrians must wait until vehicles give way to them to cross, as such vehicles must give way to pedestrians waiting* to cross
[/quote]

Err, not from what I've just read:

Rule 18

At all crossings. When using any type of crossing you should

    always check that the traffic has stopped before you start to cross or push a pram onto a crossing
    always cross between the studs or over the zebra markings. Do not cross at the side of the crossing or on the zig-zag lines, as it can be dangerous.

You MUST NOT loiter on any type of crossing.

So "always check that the traffic has stopped" is only a "should", not a "MUST".

Rule 19

Zebra crossings. Give traffic plenty of time to see you and to stop before you start to cross. Vehicles will need more time when the road is slippery. Wait until traffic has stopped from both directions or the road is clear before crossing. Remember that traffic does not have to stop until someone has moved onto the crossing. Keep looking both ways, and listening, in case a driver or rider has not seen you and attempts to overtake a vehicle that has stopped.

This addresses Slainar's comment. Provided they haven't stepped onto the crossing, he's within his rights to keep going (although it's generally considered polite and sensible to stop )

Rule 195

Zebra crossings. As you approach a zebra crossing

    look out for pedestrians waiting to cross and be ready to slow down or stop to let them cross
    you MUST give way when a pedestrian has moved onto a crossing

So as soon as they step on the crossing, it's a legal requirement ie "MUST" that you give way, but, again, it's recommended that you watch out for pedestrians and slow down or stop if they're waiting.

Here's the law it's based on:

Precedence of pedestrians over vehicles at Zebra crossings

25.—(1) Every pedestrian, if he is on the carriageway within the limits of a Zebra crossing, which is not for the time being controlled by a constable in uniform or traffic warden, before any part of a vehicle has entered those limits, shall have precedence within those limits over that vehicle and the driver of the vehicle shall accord such precedence to any such pedestrian.