TY  - JOUR
PY  - 2011//
TI  - Delay underestimation at free right-turn channelized intersections
JO  - Procedia - social and behavioral sciences
A1  - Macfarlane, Gregory S.
A1  - Saito, Mitsuru
A1  - Schultz, Grant G.
SP  - 560
EP  - 567
VL  - 16
IS  - 
N2  - To quantify the effect of unnecessary motorist hesitation in free right-turn channels and its impact on engineering delay models, the authors observed peak-hour operations at two free right-turn channelized intersections in Utah County, Utah. Regression analysis demonstrated that perceived vehicle conflicts would significantly increase individual vehicle delay at free right-turn channels, and that existing traffic prediction models did not adequately describe this delay. On average, motorists yield about 2 seconds for each conflicting vehicle. This finding raises questions about the validity of current delay assumptions for free rightturn channels, or indicates the driving public may need more adequate signage. © 2011 Published by Elsevier Ltd.<p />
LA  - 
SN  - 1877-0428
UR  - http://dx.doi.org/16/j.sbspro.2011.04.476
ID  - ref1
ER  -