Pedestrians

Comparative analysis of pedestrian injuries using police, emergency department, and death certificate data sources in North Carolina, US, 2007–2012

Sandt, LS
Proescholdbell, S
Evenson, K
Robinson, W
Rodriguez, D
Harmon, K
Marshall, S
2020
Pedestrian safety programs are needed to address the rising incidence of pedestrian fatalities. Unfortunately, most communities lack comprehensive information on the circumstances of pedestrian crashes and resulting injuries that could help guide decision-making for prevention program development and implementation. This study aimed to evaluate how three commonly available data sources (police-reported pedestrian crashes, emergency department [ED] visits, and death certificates) define and capture pedestrian injury data, and to compare the distribution of pedestrian injuries and fatalities...

Longitudinal associations between the neighborhood built environment and cognition in US older adults: the multi-ethnic study of atherosclerosis

Besser, L
Chang, L
Hirsch, J
Rodriguez, D
Renne, J
Rapp, S
Fitzpatrick, A
Heckbert, S
Kaufman, J
Hughes, T
2021
Few studies have examined associations between neighborhood built environments (BE) and longitudinally measured cognition. We examined whether four BE characteristics were associated with six-year change in global cognition and processing speed. We obtained data on 1816 participants without dementia from the Multi-Ethnic Study of Atherosclerosis. BE measures included social destination density, walking destination density, proportion of land dedicated to retail, and network ratio (street connectivity). Global cognition was measured with the Cognitive Abilities Screening Instrument (CASI) and...

Public transit use in the United States in the era of COVID-19: Transit riders’ travel behavior in the COVID-19 impact and recovery period

Parker, M
Li
Bouzaghrane, M
Obeid, H
Hayes, D
Frick, K
Rodriguez, D
Sengupta, R
Walker, J
Chatman, D
2021
COVID-19 has upended travel across the world, disrupting commute patterns, mode choices, and public transit systems. In the United States, changes to transit service and reductions in passenger volume due to COVID-19 are lasting longer than originally anticipated. In this paper we examine the impacts of the COVID-19 pandemic on individual travel behavior across the United States. We analyze mobility data from...

Walking for transportation in large Latin American cities: walking-only trips and total walking events and their sociodemographic correlates

Delclòs-Alió, X
Rodríguez, D
Medina, C
Miranda, J
Avila-Palencia, I
Targa, F
Moran, M
Sarmiento, O
Quintsberg, A
2021

Walking for transportation is a common and accessible means of achieving recommended physical activity levels, while providing important social and environmental co-benefits. Even though walking in rapidly growing urban areas has become especially challenging given the increasing dependence on motorised transportation, walking remains a major mode of transportation in Latin American cities. In this paper we aimed to quantify self-reported walking for transportation in Mexico City, Bogota, Santiago de Chile, Sao Paulo, and Buenos Aires, by identifying both walking trips that are conducted...

Comparing effects of Euclidean buffers and network buffers on associations between built environment and transport walking: the Multi-Ethnic Study of Atherosclerosis

Li, J
Peterson, A
Auchincloss, AH
Hirsch, JA
Rodriguez, D
Melly, SJ
Moore, K
Roux, AV Diez
Sánchez, BN
2022

Transport walking has drawn growing interest due to its potential to increase levels of physical activities and reduce reliance on vehicles. While existing studies have compared built environment-health associations between Euclidean buffers and network buffers, no studies have systematically quantified the extent of bias in health effect estimates when exposures are measured in different buffers. Further, prior studies have done the comparisons focusing on only one or two geographic regions, limiting generalizability and restricting ability to test whether direction or magnitude of...

Marked crosswalks in US transit-oriented station areas, 2007–2020: A computer vision approach using street view imagery

Li, M
Sheng, H
Irvin, J
Chung, H
Ying, A
Sun, T
Ng, A
Rodriguez, D
2022
Improving the built environment to support walking is a popular strategy to increase urban sustainability and walkability. In the past decade alone, many US cities have implemented crosswalk visibility enhancement programs as part of road safety improvements and active transportation plans. However, there are no systematic ways of measuring and monitoring the presence of key built environment attributes that influence the safety and walkability of an area, such as marked crosswalks. Furthermore, little is known about how these attributes change over time at a national scale. In this paper, we...

Effects of an urban cable car intervention on physical activity: the TrUST natural experiment in Bogotá, Colombia

Baldovino-Chiquillo, L
Sarmiento, OL
O’Donovan, G
Wilches-Mogollon, M
Aguilar, A
Florez-Pregonero, A
Martinez, M
Arellana, J
Guzman, L
Yamada, G
Rodriguez, D
Roux, AV Diez
2023

Cable cars are part of the transport system in several cities in Latin America, but no evaluations of their effects on physical activity are available. TransMiCable is the first cable car in Bogotá, Colombia, and the wider intervention includes renovated parks and playgrounds. We assessed the effects of TransMiCable and the wider intervention on physical activity. The Urban Transformations and Health natural experiment was a prospective quasi-experimental study conducted from Feb 1, 2018, to Dec 18, 2018 (baseline, pre-intervention) and from July 2, 2019, to March 15, 2020 (...

Microsimulation Approach to Investigate the Impact of Incorrect Automated Pedestrian Detection on the Operation of Signalized Intersections

Gavric, S
Erdagi, IG
Rodriguez, D
Stevanovic, A
2024
Numerous studies have assessed video detection systems, but automated pedestrian video detection systems (APVDS) have not received as much attention. Although some researchers have evaluated the accuracy of APVDS, none quantified the consequential effects that false or missed pedestrian calls have on critical vehicular and pedestrian performance metrics. To address this gap, this study introduces a microsimulation-based approach to analyze the impact of missed and false pedestrian calls on signalized intersection operation. This method employs simulation inputs that mimic various detection...

A comparison of heat effects on road injury frequency between active travelers and motorized transportation users in six tropical and subtropical cities in Taiwan

Hsu, CK
Rodriguez, DA
2024
Road traffic injuries (RTIs) pose significant public health threats, particularly for vulnerable road users such as pedestrians and cyclists. While recent studies have revealed adverse impacts of heat exposure on RTI frequency among motorized road users, a research gap persists in understanding these impacts on non-motorized road users, especially in tropical regions where their vulnerability can be heightened due to differential thermal exposure, adaptive capacity, and biological sensitivity. In this study, we compared associations between high temperatures and RTIs across four different...

Planning Workshop - Seminar Series

Argote-Cabanero, Juan
Camel, Madonna
Hernandez, Maribel
2016

The University of California Center on Economic Competitiveness in Transportation (UCCONNECT) together with the California Department of Transportation (Caltrans) organized four seminars in areas of interest to the Division of Transportation Planning (DOTP). UCCONNECT and DOTP collaborated to identify topics and speakers within the consortium who could present their latest research findings on the selected areas. Each session in the series consisted of a 1-2 hour presentation followed by a Q&A discussion moderated by an expert in the field. The title of the first event in the...