SIDRA for the Highway Capacity Manual

Aerial photograph of road


This paper presents information about the HCM option in the SIDRA software and discusses various aspects of the 1985 HCM / HCS methodology as well as the proposals to modify it. An application of SIDRA to an example from the HCM is presented. The paper also presents a discussion of the generalised delay formula used in SIDRA.


AKÇELIK, R. (1990). SIDRA for the Highway Capacity Manual. Compendium of Technical Papers, 60th Annual Meeting of the Institute of Transportation Engineers, pp 210–219.