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TDC Ultra User’s Manual

6-2

Signalized Intersection Delay Studies

Signalized Intersection Delay studies are one of two types of delay studies

done with the TDC Ultra. Since both are commonly called stop delay studies,

we have adapted a naming convention to distinguish between the two types.

Signalized Intersection Delay Studies are used at signalized intersections

and use a statistical method to measure delay. Stop Sign Delay studies are

done at stop sign controlled intersections and measure the delay of each

vehicle directly. This chapter deals with Intersection Delay Studies. Chapter

8 explains Stop Sign Delay studies.

The method used by the TDC Ultra for this study follows the standard method

used by trafﬁc engineers for years to do Intersection Delay Studies. This

manual assumes that you understand, at least generally, how a delay study

is performed. If you don’t then you should refer to a text book on Trafﬁc

Engineering. A good source is the “Manual for Trafﬁc Engineering Studies”

published by the Institute of Transportation Engineers.

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Ultra Start 15xx Manual de usuario Pagina 58