In this thesis, a novel Pedestrian Protection System (PPS), composed of the Pedestrian Detection System (PDS) and the Pedestrian Tracking System (PTS), was proposed. The PPS is a supplementary application for the Advanced Driver Assistance System, which is used to avoid collisions between vehicles and pedestrians. The Pedestrian Detection System (PDS) is used to detect pedestrians from near to ...

crashes, but subsequent studies extended the methodology to rural and freeway crashes (3). From this research evolved the basic pedestrian crash typology, which remains a cornerstone of much of NHTSA’s pedestrian safety activity, as well as that of FHWA. Crash types describe behaviorally similar precrash actions that lead to characteristic pedestrian–motor vehicle collisions. For example, precr...

CONTEXT Pedestrian and bicycle plans support community-level physical activity. In North Carolina, pedestrian/bicycle plans are becoming more prevalent. However, no studies have examined the spatial and temporal diffusion of pedestrian/bicycle plans. OBJECTIVES This study assessed (a) temporal trends associated with municipal pedestrian/bicycle planning from 1974 to 2011 and (b) spatial patte...

Christchurch City Council commissioned an investigation into ways of improving pedestrian level of service (LOS) at traffic signals in the central city. In 2009, Gehl Architects prepared a study entitled Public Space Public Life (2010) that considered how people use public spaces and streets in central Christchurch. This precedent study resulted in Christchurch City Council’s adoption of A City...

BACKGROUND College-age individuals have the highest incidence of pedestrian injuries of any age cohort. One factor that might contribute to elevated pedestrian injuries among this age group is injuries incurred while crossing streets distracted by mobile devices. OBJECTIVES Examine whether young adult pedestrian safety is compromised while crossing a virtual pedestrian street while distracted...

Safety is the most important to the mobile robots that coexist with human. There are many studies that investigate obstacle detection and collision avoidance by predicting obstacles’ trajectories several seconds into the future using mounted sensors such as cameras and laser range finder (LRF) for the safe behavior control of robots. In environments such as crossing roads where blind areas occu...

Studies that compare accessibility and connectivity metrics derived from pedestrian street networks have been conducted in urban environments outside of Asia. This creates uncertainty concerning the performance measures calculated on globally. The purpose this research is to: (1) develop a dedicated network approach suitable for Asian cities; (2) further understanding by including centrality ra...

Avoiding vehicle-to-pedestrian crashes is a critical requirement for nowadays advanced driver assistant systems (ADAS) and future self-driving vehicles. Accordingly, detecting pedestrians from raw sensor data has a history of more than 15 years of research, with vision playing a central role. During the last years, deep learning has boosted the accuracy of image-based pedestrian detectors. Howe...

OBJECTIVE To explore the epidemiology of pedestrian deaths in Dallas County, Texas, and to compare factors associated with pedestrian deaths on expressways versus those that occurred on other roadways. METHODS We studied all pedestrian deaths among persons 15 years of age or older in Dallas County, Texas, from 1997 to 2004 by linking data from Medical Examiner's office, the Fatality Analysis ...

BACKGROUND Despite reductions in youth pedestrian and bicyclist deaths over the past two decades, these injuries remain a substantial cause of morbidity and mortality for children and adolescents. There is a need for additional information on non-fatal pediatric pedestrian injuries and the role of traumatic brain injury (TBI), a leading cause of acquired disability. METHODS Using a multi-year...