published journal article

Measuring welfare gains from relaxation of land-use restrictions: The case of India's building-height limits

Regional Science and Urban Economics

Publication Date

November 1, 2012

Author(s)

Jan Brueckner, Kala Seetharam Sridhar

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Abstract

This paper estimates the effect of building-height limits on the spatial sizes of Indian cities. Regression results show that height limits, which are imposed in draconian fashion in India, cause spatial expansion of its cities, as predicted by the theoretical model of Bertaud and Brueckner (2005). The regression coefficients, by yielding the implied reduction in the area of an average city from a marginal increase in its height limit, allow computation of the annual saving in commuting cost for the city’s edge household when the limit is relaxed. This cost saving, which is an exact measure of the common welfare gain for each urban household, can be scaled up to yield the aggregate consumer gain in a typical city from relaxation of India’s restrictive height limits. For a moderate height-limit increase, this gain equals 106 million rupees. (C) 2012 Elsevier B.V. All rights reserved.

Suggested Citation

Jan K. Brueckner and Kala Seetharam Sridhar (2012) “Measuring welfare gains from relaxation of land-use restrictions: The case of India's building-height limits”, Regional Science and Urban Economics, 42(6), pp. 1061–1067. Available at: 10.1016/j.regsciurbeco.2012.08.003.

published journal article

Organization Theory and the Structure and Performance of Transit Agencies. Abridgment

Transportation Research Record

Publication Date

January 1, 1980

Author(s)

Gordon (Pete) Fielding, Lyman Porter, Dan Dalton, Michael Spendolini, William Todor

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Suggested Citation

Gordon J Fielding, Lyman W. Porter, Dan R. Dalton, Michael J Spendolini and William D. Todor (1980) “Organization Theory and the Structure and Performance of Transit Agencies. Abridgment”, Transportation Research Record [Preprint], (761). Available at: https://trid.trb.org/View/166809.

conference paper

Determinants of long-distance commuting: Evidence from the 2012 California household travel survey

Proceedings of the 96th annual meeting of the transportation research board

Publication Date

January 1, 2017

Author(s)

Suman Mitra, Jean-Daniel Saphores

Abstract

The determinants of long-distance commuting (i.e., commuting trips longer than 50 miles one way) in the U.S. appear to be poorly understood even though long-distance commuting may have substantial environmental, social, and economic impacts. A review of the commuting literature also shows that commuting and residential self-selection have rarely been studied together, and that few studies have considered how residential land values influence long-distance commuting. In this paper, the authors start addressing these gaps by analyzing the long-distance travel component of the 2012 California Household Travel Survey (CHTS). The authors estimate a generalized structural equation model that explains the impacts of different socio-economic, land use, and land value variables on the likelihood that households commute long-distance. In particular, the authors’ model captures residential self-selection resulting from household socio-economic characteristics. We find that households who reside in areas with a higher mixed density index are less likely to commute long-distance (OR=0.91*), whereas households with a higher car to drivers ratio are more likely to commute long-distance (OR=1.20**). Moreover, although median residential home value is significant, it has no practical importance (OR=0.99***â??1). The authors’ results also illustrate the presence of residential self-selection as land use and land value are influenced by household socio-economic and demographic characteristics. More generally, the empirical evidence presented in this study shows that land use policies can influence long distance commuting and highlights the effectiveness of mixed development for curbing vehicle-miles traveled, which is one way of reducing the environmental impacts of transportation.

Suggested Citation

Suman K. Mitra and Jean-Daniel M. Saphores (2017) “Determinants of long-distance commuting: Evidence from the 2012 California household travel survey”, in Proceedings of the 96th annual meeting of the transportation research board, p. 19p.

research report

The Impact of Labor-Management Relations on Productivity and Efficiency in Urban Mass Transit: Employee Attitudes, Withdrawal Behavior, and Bargaining Unit Structure

Publication Date

March 1, 1980

Associated Project

The Impact of Labor-Management Relations on Productivity and Efficiency in Urban Mass Transit

Author(s)

James Perry, Harold Angle

Final Report

DOT/RSPA/DPB-50/80-5

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Suggested Citation

James L. Perry and Harold A. Angle (1980) The Impact of Labor-Management Relations on Productivity and Efficiency in Urban Mass Transit: Employee Attitudes, Withdrawal Behavior, and Bargaining Unit Structure. Final Report DOT/RSPA/DPB-50/80-5. Available at: https://hdl.handle.net/2027/ien.35556021103825.

published journal article

Electric vehicle optimized charge and drive management

ACM Trans. Des. Autom. Electron. Syst.

Publication Date

October 1, 2017

Author(s)

Korosh Vatanparvar, Mohammad Al Faruque

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Suggested Citation

Korosh Vatanparvar and Mohammad Abdullah Al Faruque (2017) “Electric vehicle optimized charge and drive management”, ACM Trans. Des. Autom. Electron. Syst., 23(1), pp. 1–25. Available at: 10.1145/3084686.

research report

An information-based framework for incorporating uncertainty in transportation modeling

Publication Date

January 1, 2016

Author(s)

Jiangbo (Gabe) Yu, R. (Jay) Jayakrishnan

Suggested Citation

Jiangbo Yu and R Jayakrishnan (2016) An information-based framework for incorporating uncertainty in transportation modeling.

published journal article

Traffic-related Air Pollution and Lung Cancer Incidence: The California Multiethnic Cohort Study

American Journal of Respiratory and Critical Care Medicine

Publication Date

October 15, 2022

Author(s)

Iona Cheng, Johnny Yang, Chiuchen Tseng, Jun Wu, Salma Shariff-Marco, Seri Park, Shannon M. Conroy, Pushkar P. Inamdar, Scott Fruin, Timothy Larson, Veronica W. Setiawan, Mindy C. DeRouen, Scarlett Lin Gomez, Lynne R. Wilkens, Loïc Le Marchand, Daniel O. Stram, Jonathan Samet, Beate Ritz, Anna H. Wu

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Abstract

Rationale: Although the contribution of air pollution to lung cancer risk is well characterized, few studies have been conducted in racially, ethnically, and socioeconomically diverse populations. Objectives: To examine the association between traffic-related air pollution and risk of lung cancer in a racially, ethnically, and socioeconomically diverse cohort. Methods: Among 97,288 California participants of the Multiethnic Cohort Study, we used Cox proportional hazards regression to examine associations between time-varying traffic-related air pollutants (gaseous and particulate matter pollutants and regional benzene) and lung cancer risk (n = 2,796 cases; average follow-up = 17 yr), adjusting for demographics, lifetime smoking, occupation, neighborhood socioeconomic status (nSES), and lifestyle factors. Subgroup analyses were conducted for race, ethnicity, nSES, and other factors. Measurements and Main Results: Among all participants, lung cancer risk was positively associated with nitrogen oxide (hazard ratio [HR], 1.15 per 50 ppb; 95% confidence interval [CI], 0.99–1.33), nitrogen dioxide (HR, 1.12 per 20 ppb; 95% CI, 0.95–1.32), fine particulate matter with aerodynamic diameter <2.5 μm (HR, 1.20 per 10 μg/m3; 95% CI, 1.01–1.43), carbon monoxide (HR, 1.29 per 1,000 ppb; 95% CI, 0.99–1.67), and regional benzene (HR, 1.17 per 1 ppb; 95% CI, 1.02–1.34) exposures. These patterns of associations were driven by associations among African American and Latino American groups. There was no formal evidence for heterogeneity of effects by nSES (P heterogeneity > 0.21), although participants residing in low-SES neighborhoods had increased lung cancer risk associated with nitrogen oxides, and no association was observed among those in high-SES neighborhoods. Conclusions: These findings in a large multiethnic population reflect an association between lung cancer and the mixture of traffic-related air pollution and not a particular individual pollutant. They are consistent with the adverse effects of air pollution that have been described in less racially, ethnically, and socioeconomically diverse populations. Our results also suggest an increased risk of lung cancer among those residing in low-SES neighborhoods.

Suggested Citation

Iona Cheng, Juan Yang, Chiuchen Tseng, Jun Wu, Salma Shariff-Marco, Sung-shim Lani Park, Shannon M. Conroy, Pushkar P. Inamdar, Scott Fruin, Timothy Larson, Veronica W. Setiawan, Mindy C. DeRouen, Scarlett Lin Gomez, Lynne R. Wilkens, Loïc Le Marchand, Daniel O. Stram, Jonathan Samet, Beate Ritz and Anna H. Wu (2022) “Traffic-related Air Pollution and Lung Cancer Incidence: The California Multiethnic Cohort Study”, American Journal of Respiratory and Critical Care Medicine, 206(8), pp. 1008–1018. Available at: 10.1164/rccm.202107-1770OC.

published journal article

Enabling efficient offline mobile access to online social media on urban underground metro systems

IEEE Trans. Intell. Transport. Syst.

Publication Date

July 1, 2020

Author(s)

Di Wu, Lambros Lambrinos, Thomas Przepiorka, Dmitri Arkhipov, Qiang Liu, Amelia Regan, Julie A. McCann

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Suggested Citation

Di Wu, Lambros Lambrinos, Thomas Przepiorka, Dmitri I. Arkhipov, Qiang Liu, Amelia C. Regan and Julie A. McCann (2020) “Enabling efficient offline mobile access to online social media on urban underground metro systems”, IEEE Trans. Intell. Transport. Syst., 21(7), pp. 2750–2764. Available at: 10.1109/tits.2019.2911624.

conference paper

New inductive signature data compression and transformation method for online vehicle reidentification

Proceedings of the 85th annual meeting of the transportation research board

Publication Date

January 1, 2006

Author(s)

Shin-Ting (Cindy) Jeng, Stephen Ritchie

Abstract

Traffic operations field computational resources as well as the bandwidth of field communication links are often quite limited. Accordingly, for on-line implementation of Advanced Transportation Management and Information Systems (ATMIS) strategies, such as vehicle reidentification, there is strong interest in development of fieldâ??based techniques and models that can perform satisfactorily while minimizing field computational and communication requirements. A new vehicle reidentification algorithm (REID-2) developed previously by the authors (1) was oriented toward algorithm simplification, but also demonstrated the added benefits of improved performance and much broader potential applicability (to both round and square single inductive loops) compared with earlier methods. However, the basis of REID-2 is directly matching inductive vehicle signatures, which typically consist of 200~1,200 data points (stored as integers, and obtained from IST-222 detector cards) per signature. The purpose of this research was to investigate if a relatively simple data compression and transformation technique could be applied successfully to the raw inductive signatures for each vehicle, and then use the resulting transformed vehicle signatures as inputs to vehicle reidentification. A Piecewise Slope Rate (PSR) approach was used to compress and transform the raw vehicle signatures. The results of this investigation, including sensitivity analyses, vehicle reidentification performance, and the accuracy of section travel time measurement, are very promising and suggest that the reduction in both computational effort and computer memory needed to store individual signatures with this approach could potentially benefit both the field computational and communication requirements needed for real-time implementation of this modified vehicle reidentification technique.

Suggested Citation

Shin-Ting (Cindy) Jeng and Stephen G. Ritchie (2006) “New inductive signature data compression and transformation method for online vehicle reidentification”, in Proceedings of the 85th annual meeting of the transportation research board, p. 26p.

conference paper

Vehicle reidentification with the inductive loop signature technology

Proceedings of the 10th international conference of eastern asia society for transportation studies (EASTS), taipei, taiwan

Publication Date

September 1, 2013

Author(s)

Shin-Ting (Cindy) Jeng, Chih-Lin (Albert) Chung, Lianyu Chu

Suggested Citation

S-T. Jeng and L. Chu (2013) “Vehicle reidentification with the inductive loop signature technology”, in Proceedings of the 10th international conference of eastern asia society for transportation studies (EASTS), taipei, taiwan.