3 ms·
I believe the induction loops only sense if the first car is present. This is helpful, but can't detect the number of cars which I think is the next most import
by jakecopp 9y ago
I believe the induction loops only sense if the first car is present. This is helpful, but can't detect the number of cars which I think is the next most important metric.
- niftich 9y agoThere's also an amusing "failure mode" of induction loops: impatient people pulling up further into an intersection -- for example, aiming for an opportunistic left turn -- and they move off of the loop. The lights cycle; the left turn green arrow which would give them an exclusive phase never materializes.
- nordsieck 9y agoAt busy intersections, there will typically be a loop at the 1st spot and a second loop further back - say, at the 5th spot. It's not perfect, but it's pretty good.