conference paper
Best Frennemies? A Characterization of TNC and Transit Users Based on the 2017 NHTS
100th Transportation Research Board (TRB) Annual Meeting
Publication Date
January 1, 2021
Archives: Research Products
conference paper
Numerical simulation of continuous-time stochastic dynamical systems with noisy measurements and their discrete-time equivalents
2011 IEEE international symposium on computer-aided control system design (CACSD)
Publication Date
September 1, 2011
Author(s)
Suggested Citation
Zaher M. Kassas (2011) “Numerical simulation of continuous-time stochastic dynamical systems with noisy measurements and their discrete-time equivalents”, in 2011 IEEE international symposium on computer-aided control system design (CACSD). IEEE, pp. 1397–1402. Available at: 10.1109/cacsd.2011.6044573. working paper
A Solution Algorithm for Long Haul Freight Network Design Using Shipper-Carrier Freight Flow Prediction with Explicit Capacity Constraints
Publication Date
January 1, 2008
Author(s)
Areas of Expertise
Abstract
Freight transportation has long been recognized as an important foundation of economic strength. Previous studies use traditional methods to examine a set of scenarios. However, due to the complexity of transportation projects which can have substitution effects in a network the number of resulting scenarios may be more than can be examined on a case by case basis.
In this paper, a sequential shipper-carrier freight flow prediction model is examined. Additionally, an explicit capacity constraint is used to divert the traffic volume from congested links. A branch and bound method is applied to obtain a solution to our model. We discuss the benefits and limitations of our method, examine its computational efficiency and provide a numerical example. The results show that project selection by the traditional case by case analysis method cannot capture the complexity of freight transportation network improvements and yields the sub-optimal solution.
conference paper
Communication throughput of vehicular ad hoc networks
Proceedings of the 4th IEEE vehicular network conference (VNC 2012), seoul, south korea
Publication Date
January 1, 2012
Author(s)
Suggested Citation
Hao Yang and W.-L. Jin (2012) “Communication throughput of vehicular ad hoc networks”, in Proceedings of the 4th IEEE vehicular network conference (VNC 2012), seoul, south korea.
published journal article
Coordinated flow model for strategic planning of autonomous mobility-on-demand systems
Transportmetrica A: Transport Science
Publication Date
September 5, 2023
Associated Project
Author(s)
Abstract
High-quality strategic planning of autonomous mobility-on-demand (AMOD) systems is critical for the success of the subsequent phases of AMOD system implementation. To assist in strategic AMOD planning, we propose a dynamic and flexible flow-based model of an AMOD system. The proposed model is computationally fast while capturing the state transitions of two coordinated flows (i.e. co-flows): the AMOD service fleet vehicles and AMOD customers. Capturing important quantity dynamics and conservations through a system of ordinary differential equations, the model can economically respond to a large number and a wide range of scenario-testing requests. The paper illustrates the model efficacy through a basic example and a more realistic case study. The case study envisions replacing Manhattan’s existing taxi service with a hypothetical AMOD system. The results show that even a simple co-flow model can robustly predict the systemwide AMOD dynamics and support the strategic planning of AMOD systems.
Suggested Citation
Jiangbo (Gabe) Yu and Michael F. Hyland (2023) “Coordinated flow model for strategic planning of autonomous mobility-on-demand systems”, Transportmetrica A: Transport Science, 21(2), pp. 1–39. Available at: 10.1080/23249935.2023.2253474.Related Publications
Preprint Journal Article |
Feb 2024
Household Activity Pattern Problem with Automated Vehicle-Enabled Intermodal Trips
Preprint Journal Article |
Sep 2022
Modeling and Managing Integrated Power-Mobility Systems: A Macroscopic Approach
published journal article |
Jan 2025
Household activity pattern problem with automated vehicle-enabled intermodal trips
Transportation Research Part C: Emerging Technologies
published journal article |
Jul 2022
Private Autonomous Vehicles and Their Impacts on Near-Activity Location Travel Patterns: Integrated Mode Choice and Parking Assignment Model
Transportation Research Record: Journal of the Transportation Research Board
Preprint Journal Article |
Feb 2024
Interpretable State-Space Model of Urban Dynamics for Human-Machine Collaborative Transport Planning
conference paper
Geographic scalability and supply chain elasticity of a structural commodity generation model using public data
Proceedings of the 92nd annual meeting of transportation research board, washington, DC
Publication Date
January 1, 2013
Suggested Citation
F. Ranaiefar, J.Y. Chow, D. Rodriguez-Roman, P. Camargo and S.G. Ritchie (2013) “Geographic scalability and supply chain elasticity of a structural commodity generation model using public data”, in Proceedings of the 92nd annual meeting of transportation research board, washington, DC. published journal article
The multinomial, multiattribute logit choice model
Journal of Marketing Research
Publication Date
February 1, 1979
Author(s)
Dennis H. Gensch, Will Recker
Abstract
The authors argue that for the cross-sectional multiattribute approach to choice modeling, the multinomial logit is theoretically and empirically superior to the more commonly used regression approach. Other choice methodologies also are discussed briefly in relation to logit. The difference between individual level (where regression is appropriate) and cross-sectional analysis is recognized. Most marketing managers, because of their research goals, will be using a cross-sectional approach. The derivation of the logit from an underlying behavioral model of choice is illustrated. It is this underlying behavioral model of choice that provides logit with several conceptual advantages for modeling a multiattribute choice structure.
Suggested Citation
Dennis H. Gensch and Wilfred W. Recker (1979) “The multinomial, multiattribute logit choice model”, Journal of Marketing Research, 16(1), p. 124. Available at: 10.2307/3150883. research report
Using mesoscopic traffic simulation in a seismic risk analysis framework applied to a downtown Los Angeles network
Publication Date
January 1, 2010
Author(s)
Suggested Citation
Pierre Auza, R Jayakrishnan and Masanobu Shinozuka (2010) Using mesoscopic traffic simulation in a seismic risk analysis framework applied to a downtown Los Angeles network. working paper
Ameliorating Congestion by Income Redistribution
Working Paper
No. 192
Areas of Expertise
Abstract
Consider a community with individuals who consume a private good and use a congestible facility. Without a congestion fee, use of the congestible facility will exceed the socially optimal level. We show that under some conditions this externality problem can be solved by income redistribution. Indeed, the poor can gain from a redistribution to the rich.
Suggested Citation
Amihai Glazer and Kai A. Konrad (1993) Ameliorating Congestion by Income Redistribution. Working Paper No. 192. Institute of Transportation Studies, UC Irvine: University of California Transportation Center. Available at: https://escholarship.org/uc/item/7k0387sw.Related Publications
working paper |
Oct 1995
Clean on Paper, Dirty on the Road: Troubles with California's Smog Check
working paper |
Aug 1993
Clean or a Day: Troubles with California's Smog Check
working paper |
Sep 1994
Population and Employment Densities: Structure and Change
working paper |
Jun 1996
Transit-Oriented Development in San Diego County: Incrementally Implementing a Comprehensive Idea
published journal article
An improved Dial's algorithm for logit-based traffic assignment within a directed acyclic network
Transportation Planning and Technology
Publication Date
March 1, 2010
Author(s)
Bing-Feng Si, Ming Zhong, Hao-Zhi Zhang, Wenlong Jin