Right-Turn-on-Red Operation at Signalized Intersections with Single and Dual Right-Turn Lanes: Evaluating Performance
The determination of the level-of-service (LOS) at signalized intersections is an important
activity for decision-making in the allocation of resources for managing public roads, estimating
the impact of new developments, and designing signal timing plans. There is a need to develop models
of right-turn-on-red (RTOR) volume to permit users of the
Highway Capacity Manual methodology to
estimate the RTOR rather than rely on collection of field data, which often does not include
RTOR as a separate quantity.
NCHRP Web-Only Document 368: Right-Turn-on-Red Operation at Signalized Intersections with Single and
Dual Right-Turn Lanes: Evaluating Performance,
from TRB's National Cooperative Highway Research Program,
addresses these needs through the development of models for RTOR volume prediction and the development of
improved guidance for whether to allow RTOR.
The document is supplemental to
NCHRP Research Report 1068: Right-Turn-on-Red Site Considerations and Capacity Analysis: Practitioner's Guide.
This Summary Last Modified On: 9/27/2023