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Effects of Zoning Structure and Network Detail on Traffic Demand Modeling

Author

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  • Kang-Tsung Chang

    (Department of Geography, University of Idaho, Moscow, ID 83844-3021, USA)

  • Zaher Khatib

    (Department of Civil Engineering, University of Idaho, Moscow, ID 83844-3021, USA)

  • Yanmei Ou

    (Engineer Department, City of McKinney, McKinney, TX 75070, USA)

Abstract

By using traffic analysis zones (TAZs), centroids, and a road network as the inputs, traffic demand modeling aggregates trips from the locations of individual tripmakers to TAZ centroids and estimates trips generated between TAZs on the network. Like spatial analysis, traffic demand modeling is subject to the modifiable areal unit problem (MAUP). In this paper we report the findings of a simulation study, which uses eleven zoning structures and two levels of network detail to assess the effects of TAZs, centroids, and network detail on statewide traffic demand modeling in Idaho. First, trips generated between smaller TAZs have shorter trip lengths, higher proportions of interzonal trips, more accurate estimated volume-to-ground-count ratios, and lower percentage root mean square errors ( E RMS ) between estimated volumes and ground counts. Second, the effect of centroid locations is mixed and generally slight with small TAZs. Third, the level of network detail impacts E RMS values in two ways: larger TAZs produce lower E RMS values than smaller TAZs on the less detailed network, and the detailed network outperforms the less detailed network, regardless of the size of TAZs.

Suggested Citation

  • Kang-Tsung Chang & Zaher Khatib & Yanmei Ou, 2002. "Effects of Zoning Structure and Network Detail on Traffic Demand Modeling," Environment and Planning B, , vol. 29(1), pages 37-52, February.
    • Handle: RePEc:sae:envirb:v:29:y:2002:i:1:p:37-52
    DOI: 10.1068/b2742
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    Cited by:

    1. Ouassim Manout & Patrick Bonnel, 2019. "The impact of ignoring intrazonal trips in assignment models: a stochastic approach," Transportation, Springer, vol. 46(6), pages 2397-2417, December.
    2. Ortega, Emilio & López, Elena & Monzón, Andrés, 2014. "Territorial cohesion impacts of high-speed rail under different zoning systems," Journal of Transport Geography, Elsevier, vol. 34(C), pages 16-24.
    3. Manout, Ouassim & Bonnel, Patrick & Bouzouina, Louafi, 2018. "Transit accessibility: A new definition of transit connectors," Transportation Research Part A: Policy and Practice, Elsevier, vol. 113(C), pages 88-100.
    4. Vinicius TISCHER, 2017. "Homogeneous Zones For Urban Mobility Planning: Case Study Of Balneario Camboriãš, Brazil," Management Research and Practice, Research Centre in Public Administration and Public Services, Bucharest, Romania, vol. 9(3), pages 5-12, September.
    5. Ghadiri, Mehdi & Rassafi, Amir Abbas & Mirbaha, Babak, 2019. "The effects of traffic zoning with regular geometric shapes on the precision of trip production models," Journal of Transport Geography, Elsevier, vol. 78(C), pages 150-159.

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