Urban Planning

Are Land Use Planning and Congestion Pricing Mutually Supportive? Evidence From a Pilot Mileage Fee Program in Portland, OR

Are Land Use Planning and Congestion Pricing Mutually Supportive? Evidence From a Pilot Mileage Fee Program in Portland, OR
Journal of American Planning Association, Vol. 77, 3, 232-250

Guo, Zhan, Asha W. Agrawal & Jennifer Dill
05/09/2011

Congestion pricing and land use planning have been proposed as two promising strategies to reduce the externalities associated with driving, including traffic congestion, air pollution, and greenhouse gas emissions. However, they are often viewed by their proponents as substitutive instead of complementary to each other. Using data from a pilot mileage fee program run in Portland, OR, we explored whether congestion pricing and land use planning were mutually supportive in terms of vehicle miles traveled (VMT) reduction. We examined whether effective land use planning could reinforce the benefit of congestion pricing, and whether congestion pricing could strengthen the role of land use planning in encouraging travelers to reduce driving.

VMT data were collected over 10 months from 130 households, which were divided into two groups: those who paid a mileage charge with rates that varied by congestion level (i.e., congestion pricing) and those who paid a mileage charge with a flat structure. Using regression models to compare the two groups, we tested the effect of congestion pricing on VMT reduction across different land use patterns, and the effect of land use on VMT reduction with and without congestion pricing. With congestion pricing, the VMT reduction is greater in traditional (dense and mixed-use) neighborhoods than in suburban (single use, low-density) neighborhoods, probably because of the availability of travel alternatives in the former. Under the same land use pattern, land use attributes explain more variance of household VMT when congestion pricing is implemented, suggesting that this form of mileage fee could make land use planning a more effective mechanism to reduce VMT. In summary, land use planning and congestion pricing appear to be mutually supportive.

For policymakers considering mileage pricing, land use planning affects not only the economic viability but also the political feasibility of a pricing scheme. For urban planners, congestion pricing provides both opportunities and challenges to crafting land use policies that will reduce VMT. For example, a pricing zone that overlaps with dense, mixed-use and transit-accessible development, can reinforce the benefits of these development patterns and encourage greater behavioral changes.

 

Climate Change and Urban Transportation Systems

Climate Change and Urban Transportation Systems
in Urban Climate Change Research Network (UCCRN), First UCCRN Assessment Report on Climate Change in Cities (ARC3), edited by C. Rosenzweig, W. D. Solecki, S. A. Hammer, and S. Mehrotra. New York, NY: Cambridge University Press, 2011, forthcoming, pp. 143- 182.

S. Mehrotra (Nairobi, Mexico City), B. Lefevre (Paris), R. Zimmerman (New York City, Coordinating Lead Authors and H. Gercek, K. Jacob, and S. Srinivasan.
05/01/2011

Fine particulate matter pollution linked to respiratory illness in infants and increased hospital costs

Fine particulate matter pollution linked to respiratory illness in infants and increased hospital costs
Health Aff (Millwood). 2011 May;30(5):871-8.

Sheffield P, Roy A, Wong K, Trasande L.
05/01/2011

There has been little research to date on the linkages between air pollution and infectious respiratory illness in children, and the resulting health care costs. In this study we used data on air pollutants and national hospitalizations to study the relationship between fine particulate air pollution and health care charges and costs for the treatment of bronchiolitis, an acute viral infection of the lungs. We found that as the average exposure to fine particulate matter over the lifetime of an infant increased, so did costs for the child's health care. If the United States were to reduce levels of fine particulate matter to 7 percent below the current annual standard, the nation could save $15 million annually in reduced health care costs from hospitalizations of children with bronchiolitis living in urban areas. These findings reinforce the need for ongoing efforts to reduce levels of air pollutants. They should trigger additional investigation to determine if the current standards for fine-particulate matter are sufficiently protective of children's health.

Resource Allocation, Emergency Response Capability and Infrastructure Concentration Around Vulnerable Sites

Resource Allocation, Emergency Response Capability and Infrastructure Concentration Around Vulnerable Sites
First published on: 14 April 2011, forthcoming 2011, Journal of Risk Research, 18pp. doi:10.1080/13669877.2010.547257

J. S. Simonoff, C. E. Restrepo, R. Zimmerman, Z. S. Naphtali, and H. H. Willis.
04/14/2011

Public and private decision-makers continue to seek risk-based approaches to allocate funds to help communities respond to disasters, accidents, and terrorist attacks involving critical infrastructure facilities. The requirements for emergency response capability depend both upon risks within a region's jurisdiction and mutual aid agreements that have been made with other regions. In general, regions in close proximity to infrastructure would benefit more from resources to improve preparedness because there is a greater potential for an event requiring emergency response to occur if there are more facilities at which such events could occur. Thus, a potentially important input into decisions about allocating funds for security is the proximity of a community to high concentrations of infrastructure systems that potentially could be at risk to an industrial accident, natural disaster, or terrorist attack. In this paper, we describe a methodology for measuring a region's exposure to infrastructure-related risks that captures both a community's concentration of facilities or sites considered to be vulnerable and of the proximity of these facilities to surrounding infrastructure systems. These measures are based on smoothing-based nonparametric probability density estimators, which are then used to estimate the probability of the entire infrastructure occurring within any specified distance of facilities in a county. The set of facilities used in the paper to illustrate the use of this methodology consists of facilities identified as vulnerable through the California Buffer Zone Protection Program. For infrastructure in surrounding areas we use dams judged to be high hazards, and BART tracks. The results show that the methodology provides information about patterns of critical infrastructure in regions that is relevant for decisions about how to allocate terrorism security and emergency preparedness resources.

Climate Change and Human Health in Cities

Climate Change and Human Health in Cities
in Urban Climate Change Research Network (UCCRN), First UCCRN Assessment Report on Climate Change in Cities (ARC3), edited by C. Rosenzweig, W. D. Solecki, S. A. Hammer, and S. Mehrotra. New York, NY: Cambridge University Press, 2011, forthcoming, pp. 183-217

M. Barata (Rio de Janeiro), E. Ligeti (Toronto), Coordinating Lead Authors and G. De Simone (Rio de Janeiro), T. Dickinson (Toronto), D. Jack (New York City), J. Penney (Toronto), M. Rahman (Dhaka), and R. Zimmerman (New York City.)
04/01/2011

Mind the Map! The Impact of Transit Maps on Path Choice in Public Transit

Mind the Map! The Impact of Transit Maps on Path Choice in Public Transit
Transportation Research Part A: Policy and Practice, Vol. 45, 7, 625–639

Guo, Zhan
04/01/2011

This paper investigates the impact of schematic transit maps on passengers' travel decisions. It does two things: First, it proposes an analysis framework that defines four types of information delivered from a transit map: distortion, restoration, codification, and cognition. It then considers the potential impact of this information on three types of travel decisions: location, mode, and path choices.1 Second, it conducts an empirical analysis to explore the impact of the famous London tube map on passengers' path choice in the London Underground (LUL). Using data collected by LUL from 1998 to 2005, the paper develops a path choice model and compares the influence between the distorted tube map (map distance) and reality (travel time) on passengers' path choice behavior. Results show that the elasticity of the map distance is twice that of the travel time, which suggests that passengers often trust the tube map more than their own travel experience on deciding the ‘‘best'' travel path. This is true even for the most experienced passengers using the system. The codification of transfer connections on the tube map, either as a simple dot or as an extended link, could affect passengers' transfer decisions. The implications to transit operation and planning, such as trip assignments, overcrowding mitigation, and the deployment of Advanced Transit Information System (ATIS), are also discussed.

Developing coastal adaptation to climate change in the New York City infrastructure-shed: process, approach, tools, and strategies

Developing coastal adaptation to climate change in the New York City infrastructure-shed: process, approach, tools, and strategies

C. Rosenzweig, W. D. Solecki, R. Blake, M. Bowman, C. Faris, V. Gornitz, R. Horton, K. Jacob, A. LeBlanc, R. Leichenko, M. Linkin, D. Major, M. O’Grady, L. Patrick, E. Sussman, G. Yohe, R. Zimmerman.
02/26/2011

While current rates of sea level rise and associated coastal flooding in the New York City region appear to be manageable by stakeholders responsible for communications, energy, transportation, and water infrastructure, projections for sea level rise and associated flooding in the future, especially those associated with rapid icemelt of the Greenland and West Antarctic Icesheets, may be outside the range of current capacity because extreme events might cause flooding beyond today's planning and preparedness regimes. This paper describes the comprehensive process, approach, and tools for adaptation developed by the New York City Panel on Climate Change (NPCC) in conjunction with the region's stakeholders who manage its critical infrastructure, much of which lies near the coast. It presents the adaptation framework and the sea-level rise and storm projections related to coastal risks developed through the stakeholder process. Climate change adaptation planning in New York City is characterized by a multi-jurisdictional stakeholder-scientist process, state-of-the-art scientific projections and mapping, and development of adaptation strategies based on a risk-management approach.

Climate Change Mitigation and Adaptation in North American Cities

Climate Change Mitigation and Adaptation in North American Cities
Available on line January 7, 2011, Current Opinion in Environmental Sustainability, Vol. 3, 2011, pp. 181-187 doi:10.1016/j.cosust.2010.12.004

R. Zimmerman and C. Faris.
01/07/2011

Climate change mitigation and adaptation action plans are developing at a rapid pace, being driven by both local initiatives and emerging alliances and support organizations that cut across multiple jurisdictions. These plans include a broad range of approaches, many of which are evolving into best or leading practices and which will be increasingly used as a model for the plans of other locales. This paper draws attention to several best practices in both mitigation and adaptation for North American cities, and also highlights many of the supporting alliances and groups that disseminate key practices and drive potential synergies. Additionally, it is noted that despite the increasing rate of plan development, a continuing need exists for increased attention to adaptation at the local level.

Assessing the cost of transfer inconvenience in public transport systems: A case study of the London Underground

Assessing the cost of transfer inconvenience in public transport systems: A case study of the London Underground
Transportation Research Part A: Policy and Practice, Vol. 45, 2, 91-104

Guo, Zhan and Nigel H.M. Wilson
01/03/2011

Few studies have adequately assessed the cost of transfers in public transport systems, or provided useful guidance on transfer improvements, such as where to invest (which facility), how to invest (which aspect), and how much to invest (quantitative justification of the investment). This paper proposes a new method based on path choice,3 taking into account both the operator's service supply and the customers' subjective perceptions to assess transfer cost and to identify ways to reduce it. This method evaluates different transfer components (e.g., transfer walking, waiting, and penalty) with distinct policy solutions and differentiates between transfer stations and movements.

The method is applied to one of the largest and most complex public transport systems in the world, the London Underground (LUL), with a focus on 17 major transfer stations and 303 transfer movements. This study confirms that transfers pose a significant cost to LUL, and that cost is distributed unevenly across stations and across platforms at a station.

Transfer stations are perceived very differently by passengers in terms of their overall cost and composition. The case study suggests that a better understanding of transfer behavior and improvements to the transfer experience could significantly benefit public transport systems.

 

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