Deriving Pedestrian Risk Index by Vehicle Type and Road Geometry at Midblock Crosswalks under Heterogeneous Traffic Conditions

Chaudhari, Avinash; Gore, Ninad; Arkatkar, Shriniwas; Joshi, Gaurang; Pulugurtha, Srinivas S.

doi:10.1061/jtepbs.0000421

Cited by 9 publications

(5 citation statements)

References 16 publications

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“…On the other hand, in South Korea, severe injury crashes were associated with collisions involving pedestrians who were over the age of 65 or female ( 16 ). In other research, a Pedestrian Risk Index (PRI) was modeled by Chaudhari et al ( 17 ) as a function of vehicle speed, pedestrian volume, and vehicle volume using a multilinear regression approach. The paper indicated that the severity of conflicts was higher for lighter vehicles ( 17 ).…”

Section: Literature Reviewmentioning

confidence: 99%

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Investigating Spatial Correlations Between Land Use and Pedestrian Injury Severity in Crashes Occurring Away From Intersections in Northwest Florida

Koloushani

Karaer

Özgüven

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Roadway crashes are an increasing concern worldwide, and pedestrians are among the most vulnerable road users because of several special characteristics, including their fragility. While focusing on pedestrian-involved crashes that occurred far away from intersections, a more systematic investigation is needed to determine whether there is a relationship between the severity of these crashes and the land use types surrounding the crash locations. To investigate this issue, a network-based logistic regression model was employed to assess the impact of the distance between pedestrian-involved crash locations and the centroid of an associated land use of various types. In addition, a set of logistic models was developed to assess the effect of traffic- and environment-related factors, such as daylight and the average annual daily traffic (AADT), on the severity of crashes occurring around each land use. Several types of land use appeared to be influential in predicting pedestrian-involved crash severity. The probability of a severe pedestrian-involved crash increased around commercial land use types including retail stores or night clubs whereas it decreased around university campuses. Moreover, among the crash attributes, daylight contributed to the severity of pedestrian-involved crashes regardless of the surrounding land use type while average traffic was found to be a statistically significant factor for the crashes that occurred particularly around parking lots and office buildings. Pedestrian-involved crashes mostly occurred in the vicinity of office buildings during daylight hours, and the pedestrians were less likely to be severely injured. The findings provided valuable insight into the measurements concerning pedestrian safety with respect to various types of land use.

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Section: Literature Reviewmentioning

confidence: 99%

“…In other research, a Pedestrian Risk Index (PRI) was modeled by Chaudhari et al ( 17 ) as a function of vehicle speed, pedestrian volume, and vehicle volume using a multilinear regression approach. The paper indicated that the severity of conflicts was higher for lighter vehicles ( 17 ).…”

Section: Literature Reviewmentioning

confidence: 99%

Investigating Spatial Correlations Between Land Use and Pedestrian Injury Severity in Crashes Occurring Away From Intersections in Northwest Florida

Koloushani

Karaer

Özgüven

et al. 2022

Transportation Research Record: Journal of the Transportation R

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“…Poulos et al [ 16 ] introduced the relationship between pedestrian violations and the density of the surrounding buildings and population. Furthermore, Chaudhari et al [ 17 ] explored the composition of vehicle types and the geometric linearity of the different road segments on the impact of pedestrian injuries. In the studies of pedestrian crossing affected by multiple geographical risk factors, Fuentes and Hernandez [ 18 ] discussed the relationship between macroscopic factors such as land use type, building density, and socioeconomic characteristics in urban pedestrian fatal accidents in Mexico.…”

Section: Literature Reviewmentioning

confidence: 99%

A Geographical and Temporal Risk Evaluation Method for Red-Light Violations by Pedestrians at Signalized Intersections: Analysis and Results of Suzhou, China

Xing

Zhang

Cheng

et al. 2022

IJERPH

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Red-light violations of pedestrians crossing at signal intersections is one of the key factors in pedestrian traffic accidents. Even though there are various studies on pedestrian behavior and pedestrian traffic conflicts, few focus on the risk of different crosswalks for the violating pedestrian group. Due to the spatio-temporal nature of violation risk, this study proposes a geographical and temporal risk evaluation method for pedestrian red-light violations, which combines actual survey and video acquisition. First, in the geographical-based risk evaluation, the pedestrian violation rate at signal intersections is investigated by Pearson correlation analysis to extract the significant influencing factors from traffic conditions, built environment, and crosswalk facilities. Second, in the temporal-based risk evaluation, the survival analysis method is developed to quantify the risk of pedestrian violation in different scenarios as time passes by. Finally, this study selects 16 typical signalized intersections in Suzhou, China, with 881 pedestrian crosswalk violations from a total size of 4586 pedestrians as survey cases. Results indicate that crossing distance, traffic volume on the crosswalk, red-light time, and crosswalk-type variables all contribute to the effect of pedestrian violation from a geographical perspective, and the installation of waiting refuge islands has the most significant impact. From the temporal perspective, the increases in red-light time, number of lanes, and traffic volume have a mitigating effect on the violations with pedestrian waiting time increases. This study aims to provide a development-oriented path by proposing an analytical framework that reconsiders geographical and temporal risk factors of violation. The findings could help transport planners understand the effect of pedestrian violation-related traffic risk and develop operational measures and crosswalk design schemes for controlling pedestrian violations occurring in local communities.

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“…In 2012, during a pedestrian safety evaluation program, Tanaka developed a pedestrian safety index, to evaluate safety of pedestrian at intersections in the city of Ottawa [87]. Considering the exposure of pedestrian to motorized vehicle, some authors have also proposed a pedestrian risk index, measuring the likelihood and severity of potential crashes resulting from vehicles -pedestrian conflicts [60,88]. Most of the pedestrian safety evaluation methods have overlooked roadway segment and have focused on intersection, crosswalk, and midblock crossing [89][90][91].…”

Section: Introductionmentioning

confidence: 99%

Investigating and Improving Pedestrian Safety in an Urban Environment of a LMIC: A Case Study of Yaoundé, Cameroon

Tezong,

Dimitri,

Fondzenyuy

et al. 2024

Preprint

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In Yaoundé, Cameroon, where walking is a leading transport mode, pedestrian safety remains an issue as they account for a fair share of road traffic casualties, partly due to the lack of walking policies and data on pedestrian facilities safety, hindering targeted intervention. This study investigated road segments using the Pedestrian Safety Index (PSI) and the Global Walkability Index (GWI) across 12 key roads frequented by diverse pedestrian groups, especially students. The indexes were graded from E to A and analyzed using description and rank correlation analysis. Only one segment (R7) achieved a grade C, while the remainder scored D or E, indicating poor pedestrian safety conditions and unpleasant walking experience. The strong correlation coefficient (0.69) between the PSI and GWI at a 99% significance level validated the safety assessment, providing confidence in the safety results. Leveraging these findings, a seven-year (2024-2030) safety strategy was developed aiming to upgrade all roads to grade B. This strategy contains interventions including engineering improvement, proven effective. The study offers evidence for city officials to improve pedestrian safety and informs walking policies development and upcoming projects implementation. Future research should include more road segments and validate indexes with crash or conflict data.

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Deriving Pedestrian Risk Index by Vehicle Type and Road Geometry at Midblock Crosswalks under Heterogeneous Traffic Conditions

Cited by 9 publications

References 16 publications

Investigating Spatial Correlations Between Land Use and Pedestrian Injury Severity in Crashes Occurring Away From Intersections in Northwest Florida

Investigating Spatial Correlations Between Land Use and Pedestrian Injury Severity in Crashes Occurring Away From Intersections in Northwest Florida

A Geographical and Temporal Risk Evaluation Method for Red-Light Violations by Pedestrians at Signalized Intersections: Analysis and Results of Suzhou, China

Investigating and Improving Pedestrian Safety in an Urban Environment of a LMIC: A Case Study of Yaoundé, Cameroon

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