ITE Journal - January 2020 - 35

TOOL

Intersection Capacity Analysis:

Are You Doing It Wrong?

T

Shutterstock/TierneyMJ

By Tom Creasey, P.E., Ph.D. (M) and Bill Sampson, P.E. (F)
he Highway Capacity Manual (HCM) Signalized Intersection Analysis method
has been one of the most often used analysis tools since the "modern" method was
introduced in the 1985 edition of the HCM.1 The method is applied to evaluate the

sufficiency of intersection operations for varying levels of traffic demand, both

undersaturated (i.e. demand less than physical capacity) and oversaturated. The sad truth is that
the method is often wrongly applied when conditions are oversaturated.

w w w .i t e.or g

J a n u ar y 2020

35


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ITE Journal - January 2020

Table of Contents for the Digital Edition of ITE Journal - January 2020

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https://www.nxtbook.com/ygsreprints/ITE/G110939_ITE_November2019
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https://www.nxtbook.com/ygsreprints/ITE/G99495_ITE_October2018
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