Policy

Can Consumer Information Tighten the Transportation/Land-Use link? A Simulation Experiment

Levine, J
Rodriguez, DA
Song, J
Weinstein, MA
2006

Where people live, work, shop, and recreate fundamentally determines their local travel options. In this study, we use an experimental research design to test how strongly the dissemination of integrated accessibility and housing information influences individuals’ residential location choices. We hypothesize that individuals who receive information about accessibility to transit and accessibility to important destinations in an area as part of each rental unit listing they see are more likely to choose to live in highaccessibility neighborhoods than are individuals who do not receive such...

Applying Safety Improvements to Fleet Vehicles

Cooper, Douglas L.
Sharafsaleh, Mohammad (Ashkan)
Ragland, David R.
Begley, Loida
Kim, Yong Hee
Jin, Eui Jae
2007

The safety of both employees and the motoring public is of paramount importance to Caltrans, resulting in a continuing effort to improve the operating vehicle fleet. The potential safety changes that are the focus of this project are those that involve safety equipment enhancement over and above the original specifications for the vehicle or outside of the scope of the original equipment design or purpose, such as rear view backup video cameras.The motivation for this project was Division of Equipment (DOE) managers' need for an objective strategy to address safety equipment deployment...

Bicycle Safety in Bogotá: A Seven-Year Analysis of Bicyclists’ Collisions and Fatalities

Carvajal, G
Sarmiento, OL
Medaglia, A
Cabrales, S
Rodríguez, D
Quintsberg, A
Lopez, S
2020
Road safety research in low- and middle-income countries is limited, even though ninety percent of global road traffic fatalities are concentrated in these locations. In Colombia, road traffic injuries are the second leading source of mortality by external causes and constitute a significant public health concern in the city of Bogotá. Bogotá is among the top 10 most bike-friendly cities in the world. However, bicyclists are one of the most vulnerable road-users in the city. Therefore, assessing the pattern of mortality and understanding the variables affecting the outcome of bicyclists’...

Transportation Implications of Urban Containment Policies: Study of Largest 25 US Metropolitan Areas

Targa, F
Rodriguez, DA
Aytur, S
2006

Despite earlier attempts to evaluate the consequences of urban containment policy adoption, the transport implications of these policies have been overlooked. This paper examines the impact that containment policies have on population density and vehicle miles travelled per capita. An empirical analysis is conducted, relying on a fixed-effects model for panel data for the largest 25 metropolitan areas in the US during the 1982-94 time-period. Because the outcomes are endogenously related, instrumental variable regression is used to test hypotheses about the effect of the presence and...

Uso de Estrategias de Enriquecimiento Ambiental en oso Andino (Tremarctos ornatus), con Miras en su Readaptación Física y Comportamental, Buscando su Liberación al Medio Natural.

Chaparro, MY Torres
Mv, V Quintero
Rodriguez, D
2007

Las poblaciones de osos andinos en Colombia están drásticamente amenazadas y sugieren de manera crucial la aplicación de alternativas de conservación que sean acordes a los problemas específi cos de cada ejemplar. El uso de estrategias de enriquecimiento ambiental, es una práctica que ha ido cogiendo fuerza y se ha vinculado de manera importante en las propuestas de rehabilitación y liberación de osos mantenidos bajo condiciones de cautiverio. Se ha establecido que mediante el uso de estas técnicas, se puede modifi car el comportamiento de un individuo y que al establecer un cronograma de...

Promoting Active Community Environments Through Land Use and Transportation Planning

Aytur, SA
Rodriguez, DA
Evenson, KR
Catellier, DJ
Rosamond, WD
2007
To examine the role of land use and transportation plans as policy instruments for promoting active community environments. Cross-sectional analysis using multilevel models to examine whether active community environment scores were associated with leisure and transportation-related physical activity (PA) and whether associations varied by household income. 67 North Carolina counties Adults (n = 6694) from pooled 2000 and 2002 North Carolina Behavioral Risk Factor Surveillance System (BRFSS)...

Smart Cards, Slow Deployment: Findings from Interviews with U.S. Transit Agencies

Iseki, Hiroyuki
Taylor, Brian D.
Yoh, Allison
2008

This report summarizes findings from interviews with transit officials at seven agencies in North America about smart card evaluations, expectations, and implementation. As part of the project, “Designing a Policy Framework for a Statewide Transit Smart Card System,” this report was preceded by a literature review of smart card projects and an online survey of transit agencies’ knowledge of and interest in interoperable smart card systems for fare collection. The literature review found a lot of booster-like enthusiasm for smart cards, but few studies that have rigorously evaluated smart...

Evaluation of Incorporating Hybrid Vehicle Use of HOV Lanes

Brownstone, David
Chu, Lianyu
Golob, Tom
Nesamani, K.S.
Recker, Will
2008

This report presents a method to investigate the operational and environmental effects of the policy of allowing qualified single-occupancy hybrid vehicles to use dedicated High-Occupancy Vehicle (HOV)/carpool lanes in California.. The method combines the traditional planning method with microscopic simulation modeling. The planning method is used for demand estimation and analysis and the microscopic traffic simulation modeling method is used for accurate measures of the system. The study employs a microscopic traffic simulation model that is capable of evaluating the HOV/hybrid system...

Congestion-Responsive On-Ramp Metering: Recommendations toward a Statewide Policy

Lu, Xiao-Yun
Amini, Zahra
Mauch, Michael
Skabardonis, Alexander
2019

The objective of this project was to develop recommendations toward a statewide policy of congestion responsive freeway ramp metering (CRRM) operation. The research has been performed in the following approaches: First an empirical “before” and “after” freeway corridor performance evaluation was performed on a selected set of California’s freeway corridors that had implemented congestion responsive ramp metering. Next, other important policy and operational factors that impact the effectiveness of extended hours ramp metering were evaluated: traffic detector health and data quality and...

The Relationship Between Urban Form and Station Boardings for Bogota’s BRT

Estupiñan, N
Rodriguez, DA
2008

Despite emerging evidence about the association between the built environment and travel behavior, the relationship between bus transit demand and urban form remains largely unexplored. By relying on primary and secondary data analyzed with a geographic information system, this paper examines the built environment characteristics related to stop-level ridership for Bogotá’s successful bus rapid transit system. After accounting experimentally and statistically for the simultaneity between transit supply, transit demand, and the built environment, we find evidence of the importance of...