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Macrolevel Traffic Safety Longitudinal Comparison in Shanghai, China
Publisher: ASCE
Abstract: To ensure improvements are made in the parts of the city currently most prone to crashes, this study conducted a 2009–2016 longitudinal comparison of the traffic safety in Shanghai at the level of the traffic analysis zone ...
An Accurate Wind Retrieval Method Based on Observing Hydrogen Balloons with Multi-Theodolite Measurements
Publisher: American Meteorological Society
Abstract: The hydrogen balloon is widely used for wind sensing by tracking it with optical theodolites. The traditional theodolite observation (single- and double-theodolite) methods assume that the balloon is a perfect tracer of ...
Operational Design Domain of Automated Vehicles at Freeway Exit Terminals
Publisher: American Society of Civil Engineers
Abstract: With the advancement of automated driving technology, ensuring the operational safety of automated vehicles (AVs) has become a research focus. AVs at freeway exit terminals face high risks due to diverging operations and ...
Transferability of Urban Arterial Safety Performance Functions between Shanghai and Guangzhou, China
Publisher: ASCE
Abstract: Safety performance functions (SPFs) are used in roadway infrastructure safety management for purposes such as crash contributing factor analysis and hazardous roadway section identification. However, due to the lack of ...
Exploring Operating Speeds on Urban Arterials Using Floating Car Data: Case Study in Shanghai
Publisher: American Society of Civil Engineers
Abstract: Urban arterials in Shanghai usually have high intersection densities, which can lead to frequent and severe congestion. Research in this area of study focuses on urban arterial operating speed and its relationship with ...
Systematic Approach to Hazardous-Intersection Identification and Countermeasure Development
Publisher: American Society of Civil Engineers
Abstract: Safety performance functions (SPFs) are commonly used to correlate geometric, traffic, and environmental characteristics with total crashes, and to identify hotspots that have excessive overall crash frequencies. However, ...