Pedestrians

Old Road, New Directions: Plan for Adeline Street in Berkeley, California

Julia Griswold
Malinoff, Aaron
Karen Trapenberg Frick
Deakin, Elizabeth
2011

This paper presents a plan for transforming a major arterial and a transit station that divide a low-income business and residential district into an economically healthy, context-sensitive, transit-oriented development. Adeline Street is a major point of entry into Berkeley, California, linking the city of Oakland on the south to the central districts of Berkeley. Formerly a major streetcar corridor, Adeline is now the location of a Bay Area Rapid Transit (BART) station and a surface parking lot, for which housing and businesses were removed in the 1960s. The street's 180-ft right-of-way...

Pedestrian Safety Improvement Program

Grembek, Offer
Bosman, Crakg
Bigham, John M.
Fine, Sara
Julia Griswold
Medury, Aditya
Sanders, Rebecca L.
Schneider, Robert J.
Yavari, Afsaneh
Zhang, Yuanyuan
Ragland, David R.
2014

The Pedestrian Safety Improvement Program is an effort of the California Department of Transportation (Caltrans) to identify and address systemic problems with regard to pedestrian safety in California, with the long-term goal of substantially reducing pedestrian fatalities and injuries in California. The efforts and findings presented in this report reflect the work of a team of experts in transportation engineering, transportation planning, public health, geographic information systems, and urban design from the UC Berkeley Safe Transportation Research & Education Center.

Pedestrian Safety Improvement Program: Phase 2

Julia Griswold
Medury, Aditya
Huang, Louis
Amos, David
Lu, Jiajian
Schneider, Robert
Grembek, Offer
University of California, Berkeley
2018

The Pedestrian Safety Improvement Program is an effort of the California Department of Transportation (Caltrans) to identify and address problems with regard to pedestrian safety in California, with the long-term goal of substantially reducing pedestrian fatalities and injuries in California. The efforts and findings presented in this report reflect the work of a team of experts in transportation engineering, transportation planning, public health, geographic information systems, and urban design from the UC Berkeley Safe Transportation Research & Education Center. In particular,...

Comparison of Pedestrian Count Expansion Methods: Land Use Groups versus Empirical Clusters

Julia Griswold
Medury, Aditya
Schneider, Robert J.
Grembek, Offer
2018

Expansion factors based on the trends in long-term count data are useful tools for estimating daily, weekly, or annual volumes from short-term counts, but it is unclear how to differentiate locations by activity pattern. This paper compares two approaches to developing factor groups for hour-to-week pedestrian count expansion factors. The land use (LU) classification approach assumes that surrounding LUs affect the pedestrian activity at a location, and it is easy to apply to short-term count locations based on identifiable attributes of the site. The empirical clustering (EC) approach...

Pedestrian Count Expansion Methods: Bridging the Gap between Land Use Groups and Empirical Clusters

Medury, Aditya
Julia Griswold
Huang, Louis
Grembek, Offer
2019

Count expansion methods are a useful tool for creating long-term pedestrian or cyclist volume estimates from short-term counts for safety analysis or planning purposes. Expansion factors can be developed based on the trends from automated counters set up for long periods of time. Evidence has shown that the activity patterns can vary between sites so that there is potential to create more accurate estimates by grouping similar long-term count trends into factor groups. There are two common approaches to developing factor groups in pedestrian and cyclist count expansion studies. The land...

Developing a Safe System Approach to Setting Speed Limits

Julia Griswold
Lutzker, Liza
Fournier, Nicholas
Grembek, Offer
Fox, Jenn
Shahum, Leah
University of California, Berkeley
Vision Zero Network
2023

Over the last decade in California there has been a surge in the number of traffic fatalities, with especially large increases in pedestrian fatalities. At the same time, the California Department of Transportation (Caltrans) has affirmed a vision of reaching zero fatalities and serious injuries on state highways by 2050 and has committed the department to reaching this goal by adopting the Safe System Approach. The Safe System Approach is underpinned by the principles that humans make mistakes and that the transportation system should be designed to account for the human body’s ability to...

A Pedestrian Exposure Model for the California State Highway System

Julia Griswold
Medury, Aditya
Schneider, Robert J.
Amos, Dave
Li, Ang
Grembek, Offer
2019

For this study, we developed one of the first statewide pedestrian exposure models, using log-linear regression to estimate annual pedestrian crossing volumes at intersections on the California State Highway System. We compiled a database of more than 1,200 count locations, one of the largest ever used to create a pedestrian volume mode. We initially evaluated 75 explanatory variables for the model. The final model is based on the three land-use variables (employment density, population density, number of schools), four roadway network variables (number of street segments, intersections...

Sidewalk Networks: Review and Outlook

Rhoads, Daniel
Rames, Clément
Solé-Ribalta, Albert
Marta Gonzalez
Szell, Michael
Borge-Holthoefer, Javier
2023

From a transport perspective, increasing active travel –and walking in particular– is crucial for the future of sustainable cities, as reflected in global decarbonisation policies and agendas. Further, walking is much more than a mere mode of transport: it provides a fundamental social function, fostering vibrant cohesive communities. Arguably, walking and its associated infrastructure –sidewalks– should rank among the highest priorities for planning authorities. However, efficiency- and speed-driven urbanisation has gradually reallocated street space to private cars, leading to...

Travel Behavior in Neo-Traditional Neighborhood Developments: A Case Study in USA

Khattak, AJ
Daniel Rodriguez
2005
Although previous research has supported the view that neo-traditional or new urbanist designs result in more walking activity, several questions remain: Do residents of these neighborhoods substitute walking for driving trips, or do they make more trips overall? What is the role of self-selection of residents in these developments? This paper aims to address these questions by examining differences in travel behavior in a matched pair of neighborhoods (one conventional and one neo-traditional) in Chapel Hill and Carrboro, North Carolina. A detailed behavioral survey of 453 households and two...

Can Neighborhood Design Encourage Physical Activity?

Daniel Rodriguez
Khattak, AJ
Evenson, KR
2004

Although new urbanism continues to gain popularity worldwide, many of its effects remain unexamined. If neighborhood design can support or impede active lifestyles, we hypothesize that residents of new urbanist neighborhoods will exhibit higher levels of physical activity than residents of conventional communities. Following a quasi-experimental research design, this study evaluates physical activity patterns of residents in two distinctly designed neighborhoods, a new urbanist and a conventional suburban neighborhood in a central North Carolina community. The two neighborhoods were...