TY - JOUR PY - 1997// TI - Guidelines for offsetting opposing left-turn lanes on divided roadways JO - Transportation research record A1 - Tarawneh, Mohammed A1 - Mccoy, Patrick SP - 43 EP - 52 VL - 1579 IS - N2 - Offsetting opposing left-turn lanes at intersections has been found to improve the driving performance of older drivers. Previously recommended guidelines for offsetting opposing left-turn lanes were based on observations of left-turning vehicles for only one offset condition. The guidelines developed in the present research are based on left-turning vehicle positioning and maneuver-time data collected at intersections with left-turn lane offsets of from -4.3 to 1.8 m (-14 to 6 ft). A 1.2-m (4-ft) offset was found to provide unrestricted sight distances in most situations.
LA - en SN - 0361-1981 UR - http://dx.doi.org/10.3141/1579-06 ID - ref1 ER -