01155790

Component

Estimation of intersection turning movements is one of the key inputs required for a variety of transportation analysis, including intersection geometric design, signal timing design, traffic impact assessment, and transportation planning. Conventional approaches that use manual techniques for estimation of turning movements are insensitive to congestion. The drawbacks of the manual techniques can be amended by integrating a network traffic model with a computation procedure capable of estimating turning movements from a set of link traffic counts. This study proposes using the Path Flow Estimator (PFE), originally used to estimate path flows (hence origin-destination flows), to derive not only complete link flows, but also turning movements for the whole road network given some counts at selected roads. Two case studies using actual traffic counts are used to demonstrate the proposed intersection turning movement estimation procedure.

01147878

10-2802

English

15p

2010

Transportation Research Board 89th Annual Meeting

DVD

Figures (6) ; References (23) ; Tables (4)

Highway design; Intersections; Traffic congestion; Traffic counts; Traffic signal timing; Travel surveys; Turning traffic

Path flow estimator

Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2010 Paper #10-2802

TRIS, TRB

Jan 25 2010 11:22AM