TY  - JOUR
PY  - 1977//
TI  - Poor visiblity under low-beam headlights: a common cause of wrong-way driving
JO  - Transportation research record
A1  - Vaswani, N. K.
SP  - 52
EP  - 56
VL  - 628
IS  - 
N2  - Through selected case studies, this paper illustrates the way in which the inadequate visibility of road signs and pavement markings at night contributes to wrong-way driving. A concept termed the keg of legibility, which delineates the limits of nighttime visibility under low-beam headlights, is described. The application of the keg-of-legibility concept to the placement of signs, markings, and additional devices that help guide the motorist through the intersection of a four-lane divided highway and another road is discussed. Examples of wrong-way entry on roads having poor geometrics are used to emphasize the need for such guidance.<p />
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/
ID  - ref1
ER  -