01126706

Component

https://doi.org/10.3141/2130-14

http://scholar.google.com...ayen&publication_year=2009

Intersection delays are the major contributing factor to arterial delays. Methods to estimate intersection delay patterns by using measured travel times are studied. The delay patterns provide a way to estimate the delay for any vehicle arriving at the intersection at any time, which is useful for providing time-dependent intersection delay information to the driving public. The model requires sampled travel times between two consecutive locations on arterial streets, one upstream and the other downstream of a signalized intersection, without the need to know signal timing or traffic flow information. Signal phases can actually be estimated from the delay patterns, which is a unique feature of the proposed method in this paper. The proposed model is based on two observations regarding delays for signalized intersections: (a) delay can be approximately represented by piecewise linear curves due to the characteristics of queue forming and discharging and (b) there is a nontrivial increase in delay after the start of the red time that enables detection of the start of a cycle. A least-squares–based algorithm is developed to match measured delays in each cycle by using piecewise linear curves. The proposed model and algorithm are tested by using field experiment data with reasonable results.

01147492

09-3288

English

0000-0002-6697-222X

pp 109-119

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309142625

Print

Figures (5) ; References (18) ; Tables (1)

Algorithms; Arterial highways; Estimating; Signalized intersections; Traffic delays; Travel time

Downstream traffic; Upstream traffic

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Jan 30 2009 7:42PM

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• Capacity of U-Turns at Unsignalized Median Openings on Six-Lane Streets
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• Estimation of Freeway Work Zone Capacity Through Simulation and Field Data
• Estimation of Passenger Car Equivalents Based on Capacity Variability
• Field Evaluation of Model-Based Estimation of Arterial Link Travel Times
• Impedance Effects of Left-Turning Vehicles from the Major Street at a Two-Way Stop-Controlled Intersection
• Investigation of Peak Flow Variations: Preliminary Field Studies
• Level of Service Analysis of Freeway Weaving Segments
• Performance Measures for Truck Level of Service: An Exploratory Survey Analysis
• Prediction of User Perceptions of Signalized Intersection Level of Service Based on Fuzzy Neural Networks
• Replication of Work Zone Capacity Values in a Simulation Model
• Turbo Roundabouts: Estimation of Capacity
• Validating the Incremental Queue Accumulation Method for Left-Turn Delay Estimation