Review, Testing and Validation of Capacity and Delay Models at Unsignalized Intersections

  • Dražen Cvitanić
  • Deana Breški
  • Boris Vidak
Keywords: unsignalized intersection, capacity, delay, level of service

Abstract

This paper deals with problems related to the capacity anddelay models at unsignalized intersections. The parameters ofvarious models are calibrated based on the on-site data obtainedin the countries where the models were developed. Thispaper deals with two problems: The first is the reliability of appliedmethodology in general, and the second is the acceptabilityof model parameters for the use in prevailing road and trafficconditions in Croatia.The first section presents the background review of the gapacceptance theory which is the basis for the development of thecapacity and delay models. The mathematical derivation of thebasic capacity models is presented as well as the resulting capacitymodels according to the assumed theoretical distributionof head ways in the priority stream. This paper also presents themethods for the calculation of the capacity considering the existenceof traffic streams of different hierarchies. The results ofvmious theoretical capacity models testing are presented. Thesecond section presents a review of queuing theory and the resultingstationary and time-dependent delay models. The underlyinghypothesis as well as reliability and limitations of thedelay models are presented. Also, the Highway capacity manualdelay model was tested against field data.

References

Pravilnik o osnovnim uvjetima kojima javne ceste izvan

naselja i njihovi elementi moraju udovoljavati sa stajalista

sigumosti prometa, N. N. br. 110, 2001.

Highway Capacity Manual (HCM 1985). Transportation

Research Board, Special Report 209, Washington,

DC.

Highway Capacity Manual (HCM 1994). Transportation

Research Board, Washington DC.

Highway Capacity Manual (HCM 2000). Transportation

Research Board, Washington DC.

Abou-Henaidy, M., S. Teply, and J. D. Hunt: 'Gap

Acceptance Investigations in Canada', Proceedings of

the Second International Symposium on Highway Capacity.

Australian Road Research Board- Transportation

Research Board, Vol. 1, 1997, pp. 1-20.

Ashworth, R. & Bottom C. G.: 'Some obse1vations of

Driver gap Acceptance Behaviour at a Priority Intersection',

Traffic Engineering & Control, Vol. 18(12), 1997.

Kittelson, W. K. and Vandehey, M.A.: 'Delay effect on

driver gap acceptance characteristics at two-way stop-

controlled intersections', Transportation Research Record

Transportation Research Board, Washington

DC, 1991.

Kyte, M. Tian, Mir, Hameedmansoor, Kittelson, Vandehey,

Robinson, Brilon, Bondzio, Wu, Troutbeck: 'Capacity

and Level of Service at Unsignalized Intersections,

Final Report, Volume 1 - Two way Stop-Controlled Intersections',

Final Report for National Cooperative Highway

Research Program Project 3-46, 1996.

Brilon, W. and M. Grossmann: 'The New German Guideline

for Capacity of Unsignalized Intersections, :Inter-

sections without Traffic Signals II (Ed.: W. Brilon),

Springer Publications, Berlin, 1991.

Hansson, A. and T. Bergh: 'A New Swedish Capacity

Manual/CAPCAL', Proceedings 14th Australian Road

Research Board Conference, Vol. 14(2), 1988, pp.

-47.

Cowan, R. J.: 'Useful Headway Models', Transportation

Research, 9(6), 1975, pp. 371-375.

Drew, D. R.: 'Traffic Flow Theory and Control',

McGraw-Hill Book Company, New York, 1968.

Buckley, D. J.: 'Road Traffic Headway Distribution',

Proceedings, 1st ARRB Conf., Vol. 1(1), 1962, pp.

-186.

Harders, J.: 'The Capacity of Unsignalized Urban Intersection',

Schriftenreihe Strassenbau und Strassenverkehrstechnik,

Vol. 76, 1968.

Siegloch, W.: 'Capacity Calculations for Unsignalized

Intersections', Schriftenreihe Strassenbau und Strassenverkehrstechnik,

Vol. 1, 1974.

Cvitanic, D., Lozic, 1.: 'Modeli kapaciteta nesemaforiziranih

raskrizja', Ceste i mostovi, broj 7-8, srpanj-kolovoz

, str. 167-176, izvorni znanstveni clanak ..

Kyte, M.: 'Estimating Capacity and Delay at an All-Way

Stop-Controlled Intersection', Research Report,

TRANSNOW, Moscow/Idaho, 1989.

Troutbeck, R. J.: 'Estimating the Critical Acceptance

Gap from Traffic Movements, Research Report, 92-5,

Haight, F. A.: 'Mathematical theories of traffic flow' ,

Academic Press, London, 1963.

Troutbeck. R. J.: 'Average Delay at an Unsignalized

Intersection with Two Major Streams Each Having a

Dichotomized Headway Distribution', Transportation

Science, 20( 4), 1986, pp. 272-286.

Newell, G. F.: ''Applications of Queueing Theory', 2nd

Ed. Chapman and Hall Ltd., London, 1982.

Kimber, R. M. and E. M. Hollis: 'Peak Period Traffic

Delays at Road Junctions and other Bottlenecks'. Traffic

Engineering & Control. Vol. 19(10), 1978.

Akcelik, R. and R. J. Troutbeck: 'Implementation of the

Australian Roundabout Analysis Method in SIDRA',

Proceedings of the International Symposium on Highway

Capacity , U. Brannolte (ed.) Highway Capacity

and Level of Service, Karlsruhe, A. A. Balkema, Rotterdam,

, pp. 17-34.

How to Cite
1.
Cvitanić D, Breški D, Vidak B. Review, Testing and Validation of Capacity and Delay Models at Unsignalized Intersections. PROMET [Internet]. 1 [cited 2019Aug.20];19(2):71-2. Available from: http://traffic.fpz.hr/index.php/PROMTT/article/view/937
Section
Older issues