01099246

Component

https://doi.org/10.3141/2071-13

http://scholar.google.com...anik&publication_year=2008

The "Highway Capacity Manual" (HCM 2000) displayed the figure Exhibit 10-15 for the purpose of forecasting the likely intersection control types for future facilities. Because this figure is from a source external to HCM, to verify it, this paper employs HCM methodologies for the estimation and comparison of control delay, the choice measure of effectiveness at intersections controlled by signal, all-way stop signs, and two-way stop signs. After detailed analyses of more than 5,000 cases using Highway Capacity Software, results of control delay with various control types under a wide range of demand conditions were charted for comparison with Exhibit 10-15. It is found that Exhibit 10-15 is inconsistent with the results from HCM methodologies and, perhaps, should be replaced with the figures developed in this paper. On the basis of the criterion of minimizing delay alone, it is found that if demand is unbalanced between major and minor streets and if the traffic is low on minor streets, two-way-stop control should be used; if demand is somewhat balanced and minor streets see low to medium traffic, all-way-stop control is preferred; otherwise, signal control should be favored. The paper also demonstrates that the percentage of left-turning traffic has a significant effect on decisions involving intersection control types.

01118256

English

pp 109-116

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309113465

Print

Figures (8) ; References (16)

Highway traffic control; Isolated intersections; Left turns; Multiway stop signs; Traffic delays; Traffic signals; Travel demand

Highway Capacity Manual 2000

All-way stop-controlled intersections; Two-way stop control

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Jan 29 2008 4:37PM

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