NCHRP Synthesis 299: Recent Geometric Design Research for

Transcription

NCHRP
NATIONAL
COOPERATIVE
HIGHWAY
RESEARCH
PROGRAM
SYNTHESIS 299
Recent Geometric Design Research
for Improved Safety and
Operations
TRANSPORTATION RESEARCH BOARD
NATIONAL RESEARCH COUNCIL
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work-load values may be good predictors of accident experience on two-lane rural roads. The authors recommended a more comprehensive study. Wooldridge (73) also
used the work-load method developed by Messer. He examined the relationship between the work-load ratings
and the accident records on 19 rural two-lane highways in
Texas. He concluded that roadway sections with either
high work-load magnitudes or large increases in work load
were associated with high accident rates when compared
with accident rates on other sections on the study roadways.
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