4:57 This is done to reduce delay, to allow the green light to be displayed for the minimum time if there are less cars. If the walk signal always came on with the green, the green light would have to be displayed for at least the time it takes to cross the street.
Sometimes I wish these lights can have smart signals detecting both people and pedestrians to change their patterns and allow a smoother flow for traffic, that can reduce a lot of wait times too!
@@morethantransitt That sort of technology already exists, but the problem is that it can't distinguish between people waiting to cross, and people simply walking by. In the UK they use it, to dynamically vary the pedestrian clearance period (not compatible with countdown timers), and to cancel unnecessary demands. (e.g when a pedestrian presses the button and walks away)
![Late Autumn Walking tour in Saskatoon, Saskatchewan [4K]](http://i.ytimg.com/vi/w7nEGXVkLXE/mqdefault.jpg)
4:57 This is done to reduce delay, to allow the green light to be displayed for the minimum time if there are less cars.
If the walk signal always came on with the green, the green light would have to be displayed for at least the time it takes to cross the street.
Sometimes I wish these lights can have smart signals detecting both people and pedestrians to change their patterns and allow a smoother flow for traffic, that can reduce a lot of wait times too!
@@morethantransitt That sort of technology already exists, but the problem is that it can't distinguish between people waiting to cross, and people simply walking by.
In the UK they use it, to dynamically vary the pedestrian clearance period (not compatible with countdown timers), and to cancel unnecessary demands. (e.g when a pedestrian presses the button and walks away)