Research project studying controls for this movement, addressing such principles as the "left-turn trap". Includes animated graphic examples.

Many standard and unusual examples.

Three pages of Japanese signs with English descriptions.

Generates graphic route markers.

Unofficial traffic signal simulator available for download. Uses Java.

International overview, emphasizing the Vienna Convention of 1968 standardizing traffic control. Thorough links section.

The standard for signs, signals, and pavement markings in the United Kingdom. Includes graphics.

North Korean road signs.

Photos of approach, advance direction, exit, reassurance, and overhead signs on motorways in various countries.

Illustrates a private collection of signals, including pedestrian.