Controllers can still separate traffic safely when that feature disappears, but it makes the job slightly harder.

The village said the two-hour rule was needed to separate and keep traffic moving.

The system separates high-altitude traffic in 1,000-foot increments, a modern development that was achieved across the continental United States only last year.

By 1968 a total of 23 people died in crashes on the hill so a concrete wall was installed to separate northbound and southbound traffic.

Radburn was explicitly designed to separate traffic by mode, with a pedestrian path system that does not cross any major roads at grade.

However, the best way to separate and bundle different traffic over anonymity networks remains an open research question.

One advantage is to separate local traffic from through traffic.

A road marking consisting of central cross-hatching which separates on-coming traffic and provides safe turning areas.

Double-line markings are used to separate traffic flowing in opposite directions on busy roads.

Pedestrian fences were installed near Rockefeller Center to separate traffic.