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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
May, A.D.; Shepherd, S.P. (1994)
Publisher: Institute of Transport Studies, University of Leeds
Languages: English
Types: Book
Subjects:
This working paper is the second in a series relating to the EPSRC funded project, " The Definition of Capacity in Urban Road Networks : The Role of Area Speed-Flow Relationships". The paper reports on the collection of the four measures described by May and Shepherd (1994) for a 6x6 grid network for various origin destination patterns. \ud \ud The grid is divided into zones. Within each zone the simulated links are defined as either inbound, outbound or orbital in nature and the data is aggregated according to link type and vehicle generation time or period. This form of data aggregation is required by the strategic model START. \ud \ud The aim of this paper is to determine the area speed flow relationships within the zone links and to test whether they are sensitive to changes in OD pattern. Six different OD patterns have been simulated across a similar range of demand.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • May, A.D. and Shepherd, S.P. (1994). An investigation of area speed-flow relationships
    • by micro-simulation : Single Links. Working Paper 428. Institute for Transport Studies,
    • Wardrop, J.G. (1968).Journey speed and flow in central urban areas. traffic engineering
    • and Control 9(11).
    • 6x6 ~ r i 'Ndetwork ODA: Tracking Approach Time~krnvs DemandedFlowZone 1 otbital
    • 6x6 Grid Network ODB: Tracking Approach T i m e h vs Demanded Flow Zone l
    • 6x6 Grid Network ODB: Tracking Approach T i r n e h vs Demanded Flow Zone 1 inbound
    • 6x6 Grid Network ODB: Tracking Approach Timekm vs Demanded Flow Zone 2
    • 6x6 Grid Network ODB: Tracking Approach Timekm vs Demanded Flow Zone 2 inbound
    • 6x6 Grid Network 0DC:Tracking Approach Speed vs Demanded FlowTotal Network
    • 6x6 Grid Network ODC: Tracking Approach Timekm vs DemandedFlowZone 1
    • 6x6 Grid Network ODD: Tracking Approach Timekm vs Demanded Flow Zone 1 orbital
    • 6x6 Grid Network ODD: Tracking Ap Timekm vs Demanded Flow Zone 1 inbounc!=, 10 15 20
    • 6x6 Grid Network ODD: Tracking Approach Timekm vs Demanded Flow Zone 2 inbound
    • 6x6 Grid Network ODD: Tracking Approach T i m e h vs DemandedFlow Zone 2 orbiil
    • 6x6 Grid Network ODE: Tracking Approach Timekm vs Demanded Flow Zone 1
    • 6x6 Grid Network ODE: Tracking Approach Tirnekm vs DemandedFlowZone 1 inbound
    • 6x6 Grid Network ODE: Tracking Approach Timeikm vs Demanded Flow Zone 2 inbound
    • 6x6 Grid Network ODE: racking Approach T i m h vs Demanded FlowZone 2 ohital
    • 6x6 id Network ODF: Tracking Approach T i m h vs DemandedFlowZone 1orbital
    • 6x6 Grid Network ODF: Tracking Approach Timekm vs DemandedFlow Zone 1
    • 6x6 Grid Network ODF: Tracking Approach Timekm vs Demanded Flow Zone 1 inbound
    • 6x6 Grid Network ODF: Tracking Approach Tirnekm vs Demanded Flow Zone 2 inbound
    • 6x6 Grid Network ODF: Tracking Approach T i m e h vs Demanded FlowZone 2 orbital
    • May, A.D. and Shepherd, S.P. (1996)Area speedflow relationshipsand network aggregation. Urban transport
    • forum 96 Barcelona, Spain 2-4 October 1996.
    • May, A.D. and Shepherd, S.P. (1996) Area speed flow relationships and strategic models. Proceedings
    • ISATA96 Florence, June 3 6 t h 1996.
    • May ,A.D. and Shepherd, S.P. (1995) An investigation of area speed-flow relationships by micro-simulation.
    • 23rd European Transport Forum. PTRC. 11-15 Sept 1995.
    • Shepherd S.P. (1995) Area Speed-Flow Relationships : Considering their future use in START. ITS TN361
    • J a n 95.
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