Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 21-40 of 3948
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Vehicle Classification in Intelligent Transportation Systems: Enhanced CNN Approach and Data Set Expansion
(American Society of Civil Engineers, 2025)Vehicle classification systems are a crucial component of intelligent transportation systems (ITS). Improving the accuracy and efficiency of image recognition for vehicle classification based on the number of axles is vital ... -
Application of Crowd-Sourced Speed Data in Developing Free-Flow Speed Models
(American Society of Civil Engineers, 2025)Free-flow speed (FFS) is a critical input to many transportation engineering applications, including capacity estimation, congestion measurement, level of service assessment, and speed limit setting. Traditionally, ... -
Measuring Route Travel Time Reliability in an Urban Rail Transit Network
(American Society of Civil Engineers, 2025)Different from an urban road traffic system, an urban rail transit (URT) system operates on a relatively punctual schedule. However, as urban rail transit networks (URTNs) expand and become increasingly complex, the ... -
Effect of a Novel Framework for Transit Signal Priority Systems on Urban Networks: A Real-World Case Study
(American Society of Civil Engineers, 2025)Transit signal priority (TSP) is a crucial tool for enhancing the efficiency of urban public transportation. However, implementing control algorithms within a TSP system presents several challenges, including data transmission, ... -
Impact of On-Curve Speed Variability on the Safety and Consistency Assessment of a Two-Lane Rural Highway in Mountainous Terrain
(American Society of Civil Engineers, 2025)This study investigates how the speed variability on curves affects the geometric design consistency and safety assessment of a two-lane undivided rural highway in mountainous terrain. Previous studies have shown that speed ... -
STA-CDTM: A Cross-Domain Trajectory-Matching Framework of Roadside Sensors Based on Spatiotemporal Propagation Characteristics
(American Society of Civil Engineers, 2025)Matching trajectory segments from different roadside sensors to form continuous, regional-level trajectories has become an emerging topic for cooperative vehicle infrastructure systems (CVIS). The current appearance-based ... -
Where to Implement Leading Pedestrian Intervals: An Examination of Turning Vehicle–Pedestrian Crashes at Signalized Intersections
(American Society of Civil Engineers, 2025)Pedestrian safety is a critical transportation and public health issue, with fatalities increasing substantially over the past decade. Given this trend, it is important to understand where and when to most effectively ... -
Investigating the Impact of Pedestrian Hybrid Beacons on the Effectiveness of Adaptive Traffic Control Systems
(American Society of Civil Engineers, 2025)Many transportation agencies have been deploying adaptive traffic control systems (ATCSs) to enhance the efficiency of signalized intersections and arterial networks. However, the benefits of ATCSs vary across roadways due ... -
YOLOv5-LC: Enhancing Vehicle Detection for Evening Rushing Hour
(American Society of Civil Engineers, 2025)In order to address the challenges of low lighting and overlapping vehicles in the detection of vehicles during the evening rush hour, this article proposes a new model YOLOv5-LC based on YOLOv5s. First, to solve the problem ... -
Reducing EMS Response Time to Crash Sites under Adverse Pavement Surface Conditions
(American Society of Civil Engineers, 2025)Emergency medical services (EMS), also known as ambulance or paramedics services, play a critical role in saving lives by providing patients with the earliest urgent medical care and transportation to medical facilities. ... -
Exploring the Impact of Extreme Weather on Urban Road Traffic Networks Based on Percolation Theory
(American Society of Civil Engineers, 2025)Urban transportation, a vital artery for production and daily life, often suffers severe disruption during extreme weather events. Specifically, coastal cities often face the brunt of extreme weather events, including ... -
Modeling Delays at Signalized Intersections under Mixed Traffic Conditions
(American Society of Civil Engineers, 2025)Control delay is a key metric for evaluating traffic efficiency at signalized intersections, and its accurate estimation is crucial for effective intersection management and signal optimization. Traditional field studies ... -
Lane-Changing Decision Model of Connected and Autonomous Vehicles in Merging Area Based on Game Theory
(American Society of Civil Engineers, 2025)To enhance safety and comfort in merging zones characterized by complex interactive behaviors within mixed traffic flows of connected and autonomous vehicles (CAVs) and human-driven vehicles (HVs), this study develops a ... -
Exploring Characteristics of Road Closures Caused by Bridge Traffic Crashes: A Case Study in Pennsylvania
(American Society of Civil Engineers, 2025)When crashes occur, roadways often need to be closed for emergency response, which would greatly interrupt traffic operations. Many studies have discussed the road closure issue caused by crashes, but few of them have ... -
A Multistep Reinforcement Learning–Based Economic Adaptive Cruise Control Strategy for Electric Vehicles in a Car-Following Scenario
(American Society of Civil Engineers, 2025)To simultaneously achieve vehicle safety, riding comfort, longer battery life, and energy economy of electric vehicles (EVs) in a car-following scenario, this paper proposed an economic adaptive cruise control (Eco-ACC) ... -
Deep Learning–Based Spatial Translation of Traffic Prediction Using Newell’s Theory
(American Society of Civil Engineers, 2025)Spatiotemporal traffic flow forecasting using deep learning (DL) models typically relies on convolutional or graph-convolutional filters combined with recurrent neural networks to capture both spatial and temporal dependencies ... -
Modeling and Conflict Prediction of E-Bike Violations at Signalized Intersections
(American Society of Civil Engineers, 2025)Because e-bike violation behaviors significantly affect the efficiency and safety of signalized intersections, they should be investigated for making better countermeasures. Based on video surveillance data, the research ... -
Real-Time Conflict Prediction on Freeways under Different Vehicle Interaction Scenarios Using Short-Term Vehicle Kinematic Characteristics with Temporal Variability
(American Society of Civil Engineers, 2025)Real-time conflict prediction is an emerging research perspective of proactive road safety measures that can prevent potential risk situations. Previous research used macroscopic traffic flow data while underestimating the ... -
Organized Traffic Interweaving: Cooperative Trajectory Control of Vehicles Merging from Exit Ramps onto Surface Streets
(American Society of Civil Engineers, 2025)Vehicle weaving conflicts at the connecting areas between exit ramps and adjacent intersections pose a significant traffic challenge. These conflicts, precipitated by the influence of lane layout, result in unavoidable ... -
Operational Design Domain of Automated Vehicles at Freeway Exit Terminals
(American Society of Civil Engineers, 2025)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 ...