Quote:
Originally Posted by Metro-One
I feel this is only if you are thinking about vehicles.
At Granville and Georgia a significant amount are crossing between the southwest corner (Canada Line Entrance) and the northeast corner (Expo Line Entrance). Seems to me having those pedestrians cross the intersection once instead of twice would be a benefit.
|
Not exactly. Scramble intersections generally prohibit pedestrian movement during car phases, so at the Granville and Georgia intersection, you'd have to wait two car phases before initiating the scramble. This is worse than the current set up where, while it takes two phases to cross diagonally, you can cross one direction (eg E-W) to then immediately go the other direction (eg N-S) on the next phase. Or vise versa. Either way, you can expect to make a crossing on each phase without waiting. If this were a scramble, you'd be waiting for the third phase for pedestrian scramble when you could have already completed the diagonal crossing.
If what you are suggesting is adding a third scramble phase to current set up, I don't really see the benefit. There is a 1-in-3 chance you luck out to arrive at the intersection at the scramble phase, but otherwise it makes sense to just use it normally instead of waiting for the next scramble.
Scramble only really benefit by separating car turning movements from pedestrians crossing. The trade off being you wait longer for all the car phases to finish, but get to complete the pedestrian crossing in one phase, in conjunction with the car turning phase being shorter as there is no waiting for crossing pedestrians (ie pedestrian crossings prohibited during car phases).
Prev
Linear Mode
