Design and Evaluation of Isolated Traffic Signal using New Minimum Delay Cycle Length Equation

Abstract

T0 overcome the limitations of Webster cycle length equation, new minimum delay cycle length equations are proposed for a four phase intersection by researchers in TexasA&M University These equations are applied in the design ofan isolated four legged intersection which is located in Warangal city (Andhra Pradesh). This is followed by the measurement of classified trafic volume counts and stopped delays at the sme intersection for both morning andevening peak periods. Using Highway Capacity Manual (HCNM)- 2000 methodology the intersection level ofservice is evaluated. Later signals are designed using proposed minimum delay cycde length equation and also using Webster cycle length equation. From the results it is observed that proposed new cycle length model overcomes the shortcomings of the Webster model This modelproduced optim um cycle lengths even for higher traffic volumes