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Delay-Volume Relations for Travel Forecasting: Based on the 1985 Highway Capacity Manual

Appendix C: Selected Delay/Volume Relationships for Signalized Intersections

Figure C.1: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 1 000 VPH at Opposing and Conflicting Approaches, No Exclusive Lanes, 3600 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.1

Figure C.2: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 600 VPH at Opposing and Conflicting Approaches, No Exclusive Lanes, 3600 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.2

Figure C.3: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 200 VPH at Opposing and Conflicting Approaches, No Exclusive Lanes, 3600 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.3

Figure C.4: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 1 000 VPH at Opposing and Conflicting Approaches, Exclusive Left, 3600 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.4

Figure C.5: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (O% Right Turns, 0% Left Turns, 1 000 VPH at Opposing and Conflicting Approaches, No Exclusive Lanes, 3600 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.5

Figure C.6: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 600 VPH at Opposing and Conflicting Approaches, No Exclusive Lanes, 1800 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.6

Figure C.7: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 600 VPH at Opposing and Conflicting Approaches, Exclusive Left, 1800 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.7

Figure C.8: Delay on All Approaches of a Signalized Intersection as a Function of Volume on a Single Approach (25% Right Turns, 25% Left Turns, 600 VPH at Opposing and Conflicting Approaches, Exclusive Right, 1800 VPH Ideal Saturation Flow Rate, 20 MPH Speed, Arrival Type = 3, 90 Second Cycle)

Figure C.8

Updated: 3/25/2014
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