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5 results on '"Parthasarathi, Pavithra"'

1. Evaluation Methods for Measuring the Value of ITS Services and Benefits from Implementation: Part X Freeway Service Patrols

Author

Levinson, David and Parthasarathi, Pavithra Kandadai

Subjects
Emergency road service--United States, Disabled vehicles on express highways--United States, Intelligent Vehicle Highway Systems--United States--Cost effectiveness, Highway communications--United States--Evaluation
Abstract

The goal of our report is to determine the value that people place on the benefits offered by freeway service patrols in comparison to private assistance services and how much they would be willing to pay to avoid being stranded when their vehicle breaks down on the freeway. The report investigates the factors that contribute to people choosing to rely on the highway assistance services in comparison to the private assistance services. The studies conducted so far have focused on the effectiveness of the freeway service patrol whereas this report analyzes the factors that influence people in choosing to rely on the freeway service patrol.

Published
2001

3. Accessibility Futures

Author

Anderson, Paul, Levinson, David, and Parthasarathi, Pavithra

Subjects
jel:R53, jel:R41, jel:R52, jel:R14, jel:R12, Accessibility, Forecasting, Travel Demand, Scenarios, Trends, Transportation, Land Use, jel:H11, jel:R48
Abstract

This study uses accessibility as a performance measure to evaluate a matrix of future land use and network scenarios for planning purposes. The concept of accessibility dates to the 1950s, but this type of application to transportation planning is new. Previous research has established the coevolution of transportation and land use, demonstrated the dependence of accessibility on both, and made the case for the use of accessibility measures as a planning tool. This study builds off of these findings by demonstrating the use of accessibility-based performance measures in the Twin Cities Metropolitan Area. This choice of performance measure also allows for transit and highway networks to be compared side-by-side. For roadway modeling, zone-to-zone travel time matrix was computed using stochastic user equilibrium (SUE) assignment with travel time feedback to trip distribution. A database of schedules was used on the transit networks to assign transit routes. This travel time data was joined with the land use data from each scenario to obtain the employment, population, and labor accessibility from each traffic analysis zone (TAZ) within specified time ranges. Tables of person-weighted accessibility were computed for 20 minutes with zone population as the weight for employment accessibility and zone employment as the weight for population and labor accessibility. Maps of accessibility by zone were produced to show the spatial distribution of accessibility across the region. The results show that a scenario where population and employment growth are concentrated in the center of the metropolitan area would produce the highest accessibility no matter which transportation network changes are made. However, another scenario which concentrates population growth in the center of the metropolitan area and shifts employment growth to the periphery consistently outperforms the scenario representing the projected 2030 land use without any growth management strategy.

Published
2011

5. Places and networks : the changing landscape of transportation and technology, final summary report of the STAR-TEA 21 project.

Author

Hubert H. Humphrey Institute of Public Affairs, Berndt, Mark, Karamalaputi, Ramachandra, Parthasarathi, Pavithra, Burkhard, Richard, Kokotovich, Adam, Schooley, Benjamin, Douma, Frank, Lehnhoff, James, Sullivan, Colbey, Duncan, Chandler, Li, Yi, Wilson, Ryan, Handy, Susan L., Marich, Michael, Xu, Peng, Johnson, Andrew, McCabe, Denise, Yerra, Bhanu M., Kaplancali, Ugur, Zhang, Lei., Bolan, Richard S., Krizek, Kevin J., Horan, Thomas A., Munnich Jr., Lee W., Levinson, David., University of Minnesota. Intelligent Transportation Systems Institute, Hubert H. Humphrey Institute of Public Affairs, Berndt, Mark, Karamalaputi, Ramachandra, Parthasarathi, Pavithra, Burkhard, Richard, Kokotovich, Adam, Schooley, Benjamin, Douma, Frank, Lehnhoff, James, Sullivan, Colbey, Duncan, Chandler, Li, Yi, Wilson, Ryan, Handy, Susan L., Marich, Michael, Xu, Peng, Johnson, Andrew, McCabe, Denise, Yerra, Bhanu M., Kaplancali, Ugur, Zhang, Lei., Bolan, Richard S., Krizek, Kevin J., Horan, Thomas A., Munnich Jr., Lee W., Levinson, David., and University of Minnesota. Intelligent Transportation Systems Institute

Abstract

Over the past six years, researchers from the University of Minnesota have studied the many ways in which transportation and technology intersect. Their work has explored these intersections from many perspectives, from ways intelligent transportation systems can help police, ambulance, and other public safety providers communicate more accurately and save lives, to the use of agent-based modeling to predict how high-technology workers will influence city form--and therefore, transportation needs--through their choices about work and home location. Two other areas of study are whether and how the Internet will replace travel demand and the potential loss of privacy related to advanced transportation technologies and the public policy issues surrounding privacy. This report contains 3 volumes. Volume I has chapters 1-3. Volume II contains chapters 4-5. Volume III consists of chapter 7, and 4 appendices.

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