[XAP]Bob wrote:DougieB wrote:I'll have a look tomorrow, but this one must be triggered by a light beam. there's no cable on the path that you roll-over, like the heavy traffic versions.
Could easy be an induction loop which they've laid before the tarmac (rather than the seeming convention here, which is to lay tarmac then dig it up to put in services)
yep, there is no reflector so it must be something like that. that bit of the path is brick, so presumably easy to maintain.