conference paper

Modeling Travel and Activity Routines Using Hybrid Dynamic Mixed Networks

Proceedings of the 85th Annual Meeting of the Transportation Research Board

Publication Date

January 1, 2006

Abstract

This paper describes a method for efficiently storing, modeling, and processing an individual’s travel history collected with a global positioning system (GPS) enabled device. The technique uses a general framework called Hybrid Dynamic Mixed Networks (HDMNs), which are Hybrid Dynamic Bayesian Networks that allow representation of discrete deterministic information in the form of constraints. The paper uses this framework to model a person’s travel activity over time and to infer likely destinations and routes given information about the current trip. The paper also presents a preliminary empirical evaluation demonstrating the effectiveness of the modeling framework and algorithms using three variants of the activity model. This research will improve the quality of activity surveys based on electronic data collection methods, as well as improve the usefulness and effectiveness of in-vehicle and hand-held devices for daily activity planning and rescheduling.

Suggested Citation
James E. Marca and Craig Rindt (2006) “Modeling Travel and Activity Routines Using Hybrid Dynamic Mixed Networks”, in Proceedings of the 85th Annual Meeting of the Transportation Research Board, p. 23p.

published journal article

Evolving Optimal Ramp Control Rules

International Journal of Expert Systems

Publication Date

January 1, 1995

Author(s)

J. McDonnel, Craig Rindt, Will Recker
Suggested Citation
J. McDonnel, C. R. Rindt and W. W. Recker (1995) “Evolving Optimal Ramp Control Rules”, International Journal of Expert Systems, 8(3), pp. 287–308.

published journal article

The incidence of congestion tolls on urban highways

Journal of Urban Economics

Publication Date

January 1, 1983

Author(s)

Suggested Citation
Kenneth A. Small (1983) “The incidence of congestion tolls on urban highways”, Journal of Urban Economics, 13(1), pp. 90–111. Available at: 10.1016/0094-1190(83)90047-5.

published journal article

A formulation of unifiable multi-commodity kinematic wave model with relative speed ratios

Transportation Research Part B: Methodological

Publication Date

October 1, 2019
Suggested Citation
Wen-Long Jin and Qinglong Yan (2019) “A formulation of unifiable multi-commodity kinematic wave model with relative speed ratios”, Transportation Research Part B: Methodological, 128, pp. 236–253. Available at: 10.1016/j.trb.2019.08.007.

conference paper

Field operational test of integrated freeway ramp metering/arterial adaptive signal control - Lessons learned in Irvine, California

ADVANCED TRAFFIC MANAGEMENT SYSTEMS FOR FREEWAYS AND TRAFFIC SIGNAL SYSTEMS 2002: HIGHWAY OPERATIONS, CAPACITY, AND TRAFFIC CONTROL

Publication Date

January 1, 2002

Author(s)

CA MacCarley, Steve Mattingly, Michael McNally, D Mezger, JE Moore

Abstract

A systematic evaluation of the performance and effectiveness of a field operational test (FOT) of an integrated corridor-level adaptive control system was attempted from fall 1994 through spring 1999 in Irvine, California. The FOT was conducted by a consortium consisting of the California Department of Transportation (Caltrans), the city of Irvine, and two private-sector consultants-National Engineering Technologies Corporation and Farradyne Systems, Inc., a division of Parsons Brinckerhoff-with the city of Irvine as the lead agency. The FOT was a cost-share funded by FHWA as part of the Intelligent Vehicle Highway System Field Operational Test Program. The FOT involves an integrated advanced transportation management system, which extends the capabilities of existing traffic management systems in the city of Irvine and in Caltrans District 12. The evaluation originally entailed both a technical performance assessment and a comprehensive institutional analysis. This report of the Irvine FOT does not constitute a technical evaluation because of the failure of any of the planned technologies to be successfully implemented in the field. Because of the extended time frame associated with the project and the significant range of technical and institutional issues associated with the development and eventual failure of the FOT, a summary of project development, institutional barriers, and lessons learned is provided.

Suggested Citation
CA MacCarley, SP Mattingly, MG McNally, D Mezger and JE Moore (2002) “Field operational test of integrated freeway ramp metering/arterial adaptive signal control - Lessons learned in Irvine, California”, in ADVANCED TRAFFIC MANAGEMENT SYSTEMS FOR FREEWAYS AND TRAFFIC SIGNAL SYSTEMS 2002: HIGHWAY OPERATIONS, CAPACITY, AND TRAFFIC CONTROL. TRANSPORTATION RESEARCH BOARD NATL RESEARCH COUNCIL (Transportation research record), pp. 76–83.

published journal article

On the stability of user equilibria in static transportation networks

Transportmetrica

Publication Date

January 1, 2008

Author(s)

Suggested Citation
Wen-Long Jin (2008) “On the stability of user equilibria in static transportation networks”, Transportmetrica, 4(1), pp. 1–17. Available at: 10.1080/18128600808685677.

published journal article

Effect of taxi information system on efficiency and quality of taxi services

Transportation Research Record

Publication Date

January 1, 2005

Abstract

In many major metropolitan areas, taxi services have played an important role as a semipublic transportation mode without public support. However, there has not been much modeling effortâ??despite the importance of taxis in urban transportation systemsâ??mainly because of the difficulty in modeling taxi driversâ?? behavior. This study models a taxi service system in urban areas, taking into account taxi driversâ?? knowledge of the transportation network built from their day-to-day experience. Passenger-seeking behavior by taxi drivers is modeled on the basis of their expected travel time and expected waiting time. The model considers the stochastic and dynamic transportation network and various levels of network knowledge on the part of drivers. This modeling approach provides flexibility in modeling the characteristics of taxi operation as well as understanding how taxi driversâ?? capability evolves. The study analyzes the fleet size of taxi service systems and the effects of the taxi companyâ??s information systems by considering quality and operational efficiency of taxi services, from both the passengersâ?? and taxi operatorsâ?? points of view. A simulation experiment shows that the taxi information system can provide benefits equivalent to increasing the number of taxis by 20% in regard to the quality of taxi service.

Suggested Citation
Hyunmyung Kim, Jun-Seok Oh and R. Jayakrishnan (2005) “Effect of taxi information system on efficiency and quality of taxi services”, Transportation Research Record, 1903(1), pp. 96–104. Available at: 10.1177/0361198105190300111.

published journal article

Population and Employment Densities: Structure and Change

Journal of Urban Economics

Publication Date

November 1, 1994
Suggested Citation
Kenneth A. Small and Shunfeng Song (1994) “Population and Employment Densities: Structure and Change”, Journal of Urban Economics, 36(3), pp. 292–313. Available at: 10.1006/juec.1994.1037.

published journal article

Locally charged: Energy justice outcomes of a low-income community solar project in Michigan

Energy Research & Social Science

Publication Date

July 1, 2024

Author(s)

Karl W. Hoesch, Douglas L. Bessette, Dominic Bednar

Abstract

The global transition from fossil fuels to renewable energy has potential to mitigate or exacerbate injustices in the current energy system. Barriers to solar adoption can prohibit low-to-moderate income (LMI) households from realizing the financial benefits of ownership. At the same time, these households are more exposed to cost increases due to aging grid infrastructure and increased demand due to electrification. Procedural injustices mount when those renewables are sited without involving residents in decision-making. Community solar, which allows multiple owners or subscribers to benefit from a single solar array, is considered one solution to these distributional and procedural justice challenges because of its potential to localize energy benefits and decision-making. However, community solar projects and their outcomes vary widely. This study explores one community solar project in a rural community in the upper peninsula of the U.S. state of Michigan. The project contained a carve-out for LMI households identified through participation in the National Weatherization Program (WAP). Through nine semi-structured interviews, 44 phone surveys, and analysis of two years of monthly energy consumption and bill data we sought to understand three energy justice impacts on the targeted community and participants’ perceptions of the program and its processes. We show that positive distributional, procedural, and recognition justice outcomes from community solar are achievable in a context without supportive legislation, under certain conditions. These results may have implications for expanding community solar to LMI households in small towns both in the United States and abroad.

Suggested Citation
Karl W. Hoesch, Douglas L. Bessette and Dominic J. Bednar (2024) “Locally charged: Energy justice outcomes of a low-income community solar project in Michigan”, Energy Research & Social Science, 113, p. 103569. Available at: 10.1016/j.erss.2024.103569.