Can you review the design of countdown digital displays at Transport for London pedestrian crossings? Do you agree that 4-second countdowns (which seem like 3 seconds in practice) are too quick to be of much use to pedestrians in their decision-making?
Why cannot all displays be extended by, say, 5 seconds, and overlapping the still-lit green-person light for their first 5 seconds? Is there any statutory or published guideline reason why not?
Have digital displays proven to be safer, or are they more a matter of convenience?