Routing of radioactive shipments in networks with time-varying costs and curfews

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Description

This research examines routing of radioactive shipments in highway networks with time-dependent travel times and population densities. A time-dependent least-cost path (TDLCP) algorithm that uses a label-correcting approach is adapted to include curfews and waiting at nodes. A method is developed to estimate time-dependent population densities, which are required to estimate risk associated with the use of a particular highway link at a particular time. The TDLCP algorithm is implemented for example networks and used to examine policy questions related to radioactive shipments. It is observed that when only Interstate highway facilities are used to transport these materials, a shipment ... continued below

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[100] p.

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Bowler, L.A. & Mahmassani, H.S. September 1, 1998.

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Description

This research examines routing of radioactive shipments in highway networks with time-dependent travel times and population densities. A time-dependent least-cost path (TDLCP) algorithm that uses a label-correcting approach is adapted to include curfews and waiting at nodes. A method is developed to estimate time-dependent population densities, which are required to estimate risk associated with the use of a particular highway link at a particular time. The TDLCP algorithm is implemented for example networks and used to examine policy questions related to radioactive shipments. It is observed that when only Interstate highway facilities are used to transport these materials, a shipment must go through many cities and has difficulty avoiding all of them during their rush hour periods. Decreases in risk, increased departure time flexibility, and modest increases in travel times are observed when primary and/or secondary roads are included in the network. Based on the results of the example implementation, the suitability of the TDLCP algorithm for strategic nuclear material and general radioactive material shipments is demonstrated.

Physical Description

[100] p.

Notes

INIS; OSTI as DE99000896

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  • Other Information: PBD: Sep 1998

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  • Other: DE99000896
  • Report No.: ANRCP--1998-11
  • Grant Number: FC04-95AL85832
  • DOI: 10.2172/291124 | External Link
  • Office of Scientific & Technical Information Report Number: 291124
  • Archival Resource Key: ark:/67531/metadc676151

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 17, 2015, 10:23 a.m.

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Bowler, L.A. & Mahmassani, H.S. Routing of radioactive shipments in networks with time-varying costs and curfews, report, September 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc676151/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.