Citation

Highw. Res. Board bull. 1953; 72: 23-49.

Copyright

(Copyright © 1953, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Differences are presented in the present tables from the 1946 tables of the path of vehicles on the following aspects: The radius of turns, the spiraling curves on turns, width of wheel path, minimum design for turning lanes, minimum desirable radius for truck turns, transitions to width of pavement on turns, and logging trucks. All tables have been extended to a steering radius of 500 feet. A new table has been added showing data for a 35-foot bus with a 22-foot wheel base. Two tables have been added showing the greatest width of wheel path reached by the semitrailer S/ 50/18 on turns through central angles of 10 degrees to 270 degrees, one table is for circular curves, the other for spiral curves. An explanation is presented of tables and sketches.