Article
Green & Sustainable Science & Technology
Rajaram Bhagavathula, Ronald B. B. Gibbons
Summary: In the last decade, pedestrian fatalities at night, especially at midblock locations, have been increasing at an alarming rate. Lighting is an effective countermeasure in reducing nighttime crashes. However, few studies have evaluated the effects of crosswalk lighting on pedestrian visibility at midblock locations. It is important to compare the visibility benefits of crosswalk lighting designs with and without pedestrian-crossing treatments in order to make effective recommendations for increasing nighttime pedestrian visibility. This study evaluated the visual performance of five midblock crosswalk lighting designs along with two pedestrian safety countermeasures at three light levels on a realistic midblock crosswalk.
Article
Engineering, Civil
Sandeep Manthirikul, Udit Jain, Sankaran Marisamynathan
Summary: This study proposes a new approach to measure field pedestrian waiting delay and develops a new pedestrian waiting delay model for signalized midblock crosswalks. The proposed approach and model are validated and found to be accurate in estimating pedestrian waiting delay. They can be used by traffic engineers and urban planners to improve pedestrian facilities and safety.
JOURNAL OF TRANSPORTATION ENGINEERING PART A-SYSTEMS
(2023)
Article
Transportation Science & Technology
Xiaofeng Li, Yao-Jan Wu
Summary: This paper proposes a novel method for estimating pedestrian volume at midblock crosswalks using button-pushing and signal timing events, and evaluation results indicate that the proposed methods are promising for estimating pedestrian volume with event based data.
TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES
(2021)
Article
Physics, Multidisciplinary
Chuanyao Li, Shikun Liu, Xuekai Cen
Summary: This paper investigates the efficacy of using Midblock Zebra Crosswalk (MZC) to regulate unauthorized midblock crossing, utilizing a Fuzzy Cellular Automata (FCA) model to analyze the impact of pedestrian-vehicle interactions on safety and efficiency. The model explores the decision making process of individual drivers and evaluates safety and efficiency indicators under different scenarios of obedient drivers and traffic flows.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Engineering, Civil
Yalcin Alver, Burak Yigit Katanalp
Summary: This study addresses the complex decision structure of pedestrian crossing behavior by proposing an integrated analytical hierarchical process-fuzzy logic (AHP-FL) approach. By using machine learning and statistical methods, the study examines in-depth the factors affecting gap acceptance behavior, with vehicle speed and item carriage identified as crucial explanatory factors.
JOURNAL OF TRANSPORTATION ENGINEERING PART A-SYSTEMS
(2022)
Article
Green & Sustainable Science & Technology
Irena Istoka Otkovic, Aleksandra Deluka-Tibljas, Sanja Surdonja, Tiziana Campisi
Summary: The study focused on modeling children-pedestrian speed at signalized pedestrian crosswalks in various cities using neural network and multiple linear regression models. The neural network model showed better reliability across different urban environments compared to the multiple linear regression model.
Article
Ergonomics
Qinaat Hussain, Wael K. M. Alhajyaseen, Ali Pirdavani, Kris Brijs, Khaled Shaaban, Tom Brijs
Summary: Pedestrians account for a large proportion of injuries and fatalities in road traffic crashes in the state of Qatar, particularly in areas with uncontrolled midblock crosswalks where improving drivers' alertness and yielding behavior is crucial. Results from the driving simulator study show that LED and VMS conditions can effectively increase yielding rates, reduce vehicle-pedestrian conflicts, and motivate drivers to reduce speed in advance.
ACCIDENT ANALYSIS AND PREVENTION
(2021)
Article
Ergonomics
Nafis Anwari, Mohamed Abdel-Aty, Amrita Goswamy, Ou Zheng
Summary: This study evaluates and compares Surrogate Safety Measures (SSMs) at different midblock sites equipped with Rectangular Rapid Flashing Beacons (RRFB) and Pedestrian Hybrid Beacons (PHB) in Florida. Extensive video data collected from July to November 2021 is used to analyze four pedestrian SSMs, including spatial gap, temporal gap, relative time to collision (RTTC), and Post Encroachment Time (PET). The study finds significant differences in SSM values across different treatment types and hours of the day through statistical tests. Regression analysis reveals significant differences in SSMs between RRFB and PHB sites. Non-linear models outperform linear models in predicting SSMs. Factors such as the presence of PHB, signal activation, and pedestrian and vehicular characteristics are found to be significant determinants of SSMs. Results suggest improved traffic safety at PHB sites compared to RRFB sites in terms of temporal SSMs, but decreased spatial gaps at PHB sites indicate pedestrians perceive vehicles to be closer than at RRFB sites.
ACCIDENT ANALYSIS AND PREVENTION
(2023)
Article
Engineering, Civil
Kay Fitzpatrick, Srinivas Geedipally, Boniphace Kutela, Peter Koonce
Summary: The midblock pedestrian signal (MPS) is a coordinated actuated vehicular traffic signal that allows pedestrians to cross at midblock. It reduces delay to vehicular traffic by flashing the red display for vehicles at the same time as the pedestrian timing for crossing. A research team found that the MPS is associated with a reduction in crashes involving pedestrians and in all fatal and injury crashes.
TRANSPORTATION RESEARCH RECORD
(2023)
Article
Geography
Wonjun No, David Lee, Byeongjoon Noh, Youngchul Kim
Summary: This study investigates the extent to which crosswalk delays at signalized crosswalks reduce pedestrians' effective walking access in Seoul, Korea. The results show significant reductions in walkshed size and served users, with greater delays observed in commercial zoning areas and recent residential developments. The findings highlight the importance of further studies on the impact of zoning system and land use management on improving walking conditions.
Article
Ergonomics
Digvijay S. Pawar, Ankit Kumar Yadav
Summary: This study models the dilemma zone for pedestrians crossing high-speed roads and analyzes the factors influencing their gap acceptance behavior. The findings provide insights for pedestrians to judge safe gaps and reduce the risk of pedestrian-vehicle crashes.
JOURNAL OF SAFETY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Aleksandra Deluka-Tibljas, Sanja Surdonja, Irena Istoka Otkovic, Tiziana Campisi
Summary: Child pedestrians account for 30% of the total number of children injured in road traffic accidents in the EU. They are particularly vulnerable due to their unique traffic behavior influenced by cognitive and physical development, sociodemographic characteristics, and environmental factors. This paper provides an overview of research on parameters affecting child safety at intersection-crosswalk conflict zones, highlighting the need for further study on the impact of distractors and COVID-19 pandemic non-mobility, as well as potential infrastructural solutions.
Article
Transportation
Sandeep Manthirikul, Udit Jain, Sankaran Marisamynathan
Summary: The present study proposed new pedestrian delay models for Signalized Midblock Crosswalks (SMC) under mixed traffic conditions. Through data collection and modeling, the proposed models accurately predict pedestrian delay, and can be used for optimizing traffic signal timing and defining the level of service for facilities.
Article
Multidisciplinary Sciences
Walid Abdullah Al Bargi, Basil David Daniel, Nasradeen A. Khalifa, Munzilah Md Rohani, Qinaat Hussain, Rafidah Binti Hamdan
Summary: A zebra crossing is a safety measure to reduce conflicts and accidents between pedestrians and motorists. Previous studies have not shown changes in pedestrian's utilization rate of zebra crossing. This study uses regression models to analyze factors influencing utilization rate and finds that guardrail, number of lanes, and width of zebra crossing are the most influential variables.
Article
Green & Sustainable Science & Technology
Natalia Zuniga-Garcia, Kenneth A. Perrine, Kara M. Kockelman
Summary: This study analyzes pedestrian crash counts at more than one million intersections and midblock segments using Texas police reports over ten years. The study found that signalized intersections, arterial roads, more lanes, narrower or non-existent medians, and wider lanes coincide with higher crash rates. Furthermore, the study reveals that the number of intersection crashes is higher in Austin compared to the rest of Texas, but the number of midblock crashes is lower. The study also highlights the importance of the central business district location in influencing crash rates, and the impact of income inequality on crash rates.
Review
Multidisciplinary Sciences
Udit Jain, Rajat Rastogi
Article
Transportation
Udit Jain, Manjit Singh, Rishiraj, Robin Verma, Rishabh Vijay, Rajat Rastogi
TRANSPORTATION LETTERS-THE INTERNATIONAL JOURNAL OF TRANSPORTATION RESEARCH
(2019)
Article
Transportation Science & Technology
Udit Jain, Rajat Rastogi
Review
Engineering, Civil
Sandeep Manthirikul, Udit Jain, Vijay Teja Amshala
Summary: Vehicle-pedestrian crashes are common road accidents, and existing warrant guidelines lack clear provisions for grade-separated pedestrian crossing facilities, highlighting the need for improved warrants.
JOURNAL OF TRANSPORTATION ENGINEERING PART A-SYSTEMS
(2022)
Article
Engineering, Civil
Sandeep Manthirikul, Udit Jain, Sankaran Marisamynathan
Summary: This study proposes a new approach to measure field pedestrian waiting delay and develops a new pedestrian waiting delay model for signalized midblock crosswalks. The proposed approach and model are validated and found to be accurate in estimating pedestrian waiting delay. They can be used by traffic engineers and urban planners to improve pedestrian facilities and safety.
JOURNAL OF TRANSPORTATION ENGINEERING PART A-SYSTEMS
(2023)
Proceedings Paper
Transportation
Pradip Kumar Sarkar, Udit Jain
WORLD CONFERENCE ON TRANSPORT RESEARCH - WCTR 2016
(2017)
Proceedings Paper
Transportation
Udit Jain, Rajat Rastogi
WORLD CONFERENCE ON TRANSPORT RESEARCH - WCTR 2016
(2017)