TY  - JOUR
PY  - 1981//
TI  - Effect of lane and shoulder widths on accident reduction on rural, two-lane roads
JO  - Transportation research record
A1  - Zegeer, Charles V.
A1  - Deen, Robert C.
A1  - Mayes, Jesse G.
SP  - 
EP  - 
VL  - 806
IS  - 
N2  - A study to determine the effect of lane and shoulder widths on accident benefits for rural, two-lane roads and to determine the expected cost-effectiveness of lane and shoulder widening is described. Information concerning geometrics, accidents, and traffic volumes was obtained for more than 25,000 km (15,000 miles) of roads. Run-off-road and opposite-direction accidents were the only accident types found to be associated with narrow lanes and shoulders. Wide lanes had accident rates 10-39 percent lower than those for narrow lanes. Wide shoulders (up to 2.7-m (9-ft) width) were associated with the lower accident rates. Criteria based on a cost-effectiveness approach for selecting highway sections for widening are presented.<p />
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/
ID  - ref1
ER  -