The Effect of the No-Passing Zone Sign on "Passing" Accidents, 1963

(1963) The Effect of the No-Passing Zone Sign on "Passing" Accidents, 1963. Transportation, Department of


File Size:119kB


The No Passing Zone sign (Wl0-4) was designed in 1958 for the purpose of informing the driver contemplating a passing maneuver of hazardous sight conditions ahead. This warning sign, of pennent shape design, was placed on the left side of the road so as to be more conspicuous to the intended driver. During the two year period 1959-1960, the Wl0-4 signs were erected throughout the Iowa Primary Road System.

Item Type: Departmental Report
Keywords: Crash analysis, Hazard mitigation, High risk locations, No passing zones, Passing
Subjects: Transportation
Transportation > Motor vehicles
Transportation > Traffic safety
Transportation > Traffic safety > Accident report forms
ID Code: 21723
Deposited By: Iowa DOT Library
Deposited On: 04 Mar 2016 13:13
Last Modified: 04 Mar 2016 13:13