Lateral vehicle placement and steering wheel reversals on a simulated bridge of variable width. Paper presented at the 52nd Annual Meeting of the Highway Research Board, Washington D.C., January 1973.

The results of steering reversals and lateral placement of vehicles driven by 10 subjects across a simulated bridge with variable shoulder width are presented. Based on these findings, it would appear that a minimum shoulder width of 4 to 6 ft would be required in order not to influence traffic operations.