4 ms·
A Puffin - http://en.wikipedia.org/wiki/Puffin_crossing http://en.wikipedia.org/wiki/Puffin_crossing may have a near-side detector, that will cancel the demand
by bmslieght 13y ago
A Puffin - http://en.wikipedia.org/wiki/Puffin_crossing http://en.wikipedia.org/wiki/Puffin_crossing may have a near-side detector, that will cancel the demand if you move way from the crossing. i.e. have crossed in the gap.