R L J O K if.......

plowmar

I'm not a big, medium or small city lad but in my area there are a lot of demand lights that only change if a car approaches them, they just have the road sensors not the light top sensors.

Is it ok to jump the lights in this situation.

edit - oh bugger I think I know the answer I'll just take myself outside with this gun.

bails87

Yes it is. But tell the council they don't work.

The light is classed as faulty so proceed with care once you can see it's clear. Or get onto the pavement and walk.

Initialised

Sometimes you can trip these sensors with your cleats, float them over as you approach.

redvee

Look for a diamond shape embedded in the tarmac on the approach to the lights and stop over the lines for 2-3 seconds. That usually trip the lights in you favour.

plowmar

Thought of that redvee but don't they just react to car type weight and wheel spacing?

Bails87 - the lights do work but just not for bikes. if a car comes along they immediatley change.

Not thought of that one Initialised will have to give it a go.

Thanks for your comments.

bails87

plowmar wrote:

Bails87 - the lights do work but just not for bikes. if a car comes along they immediatley change.

Yeah, so they're faulty, honestly. Imagine if you were in a car and they didn't chnage until a fully loaded HGV pulled up. They'd be faulty then so why not when a bike is waiting?

redvee

plowmar wrote:

Thought of that redvee but don't they just react to car type weight and wheel spacing?

No. There is a set of TLs in Bristol Centre that I thought were weight sensitive but they need something over the lines for 2-3 seconds before registering a vehicle wanting to use the lights. Another set I found out by accident how to trigger in my favour by riding over the corners of the diamonds in the road.

Look at 0:14 & 0:17

http://www.youtube.com/watch?v=YJ2eszqxiRM

CarlosDSanchez

They're not weight sensitive, the diamond in the road is an inductive loop. When anything big and metal is over it, the resistance changes which is detected and then the lights are triggered.

I used to have the same problem leaving the railway station in Ipswich and using the combined cycle/bus lane. Never could get the lights to change so used to have to go through "with care" on red.