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2025-09
Comprehensive Investigation of Roundabout Safety Challenges in the Southeast United States: Findings and Recommendations from Kentucky’s Survey Analysis

Transportation Research Record: Journal of the Transportation Research Board, Volume 2679, Issue 9, pp 948-966

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2025-07
NCHRP Research Report 1043 and NCHRP Web-Only Document 347: Celebrating the Latest Roundabout Guide

TR News, Issue 354

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2025-05
Dynamic Modeling of Passenger Car Units for Roundabouts: A Novel Genetic Algorithm Optimization-Based Approach

Transportation Research Record: Journal of the Transportation Research Board, Volume 2679, Issue 5, pp 381-401

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2025-05
Comparison of International Methods to Estimate Maximum Speed Through Roundabouts

Transportation Research Record: Journal of the Transportation Research Board, Volume 2679, Issue 5, pp 273-290

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2025-03
Impact of Slip Lanes on Pedestrian Safety at Roundabouts Considering Autonomous Vehicles

Transportation Research Record: Journal of the Transportation Research Board, Volume 2679, Issue 3, pp 112-126

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2025-02
Experiences in the Use of Mini and Modular Roundabouts by Highway Agencies

80p

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2025-01
Comparative Analysis of Entry Capacity Models for Multilane Roundabouts under Mixed Traffic Flow Conditions

Transportation Research Record: Journal of the Transportation Research Board, Volume 2679, Issue 1, pp 1364-1380

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2025
Evaluating the Accuracy of Vehicle Tracking Data from Unmanned Aerial Vehicle Videos and Identifying Traffic Conflict Points to Develop a Conflict Frequency Predictive Model for Roundabout Safety Assessment under Mixed Traffic

Transportation Research Record: Journal of the Transportation Research Board

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2025
Development of a Driver Safety Reward System Incorporating You Only Look Once (YOLO)-Based Traffic Violation Detection at Roundabouts under Highly Heterogeneous Traffic

Transportation Research Record: Journal of the Transportation Research Board

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2025
Examining Speed Selection and Driver Yielding Behavior Toward Pedestrians and Bicyclists at Roundabouts

Transportation Research Record: Journal of the Transportation Research Board

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2025
Roundabout Capacity Survey Method Using Vehicle Trajectory Data and Gap Acceptance Cycles

Transportation Research Record: Journal of the Transportation Research Board

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2024-10
Methodology to Counter Heterogeneity at Urban Multilane Roundabouts

Transportation Research Record: Journal of the Transportation Research Board, Volume 2678, Issue 10, pp 1407-1421

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2024-10
New Model for Estimating the Influence of Pedestrians on the Entry Capacity of Roundabouts

Transportation Research Record: Journal of the Transportation Research Board, Volume 2678, Issue 10, pp 575-590

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2024-09
Real Entrance Capacity of a Single-Lane Roundabout Owing to Congestion on the Circular Lane

Transportation Research Record: Journal of the Transportation Research Board, Volume 2678, Issue 9, pp 764-775

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2024-05
Network-Wide Implementation of Roundabouts Versus Signalized Intersections on Urban Streets: Analytical and Simulation Comparison

Transportation Research Record: Journal of the Transportation Research Board, Volume 2678, Issue 5, pp 719-735

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2023-12
Operational Performance of Roundabouts at High-Speed and Rural Locations

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 12, pp 144-157

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2023-12
Implementing Artificial Neural Network-Based Gap Acceptance Models in the Simulation Model of a Traffic Circle in SUMO

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 12, pp 227-239

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2023-09
Effects of Phi and View Angle Geometric Principles on Safety of Multi-Lane Roundabouts

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 9, pp 362-371

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2023-08
Developing Safety Performance Functions and Crash Modification Factors for Urban Roundabouts in Heterogeneous Non-Lane-Based Traffic Conditions

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 8, pp 644-661

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2023-07
Fundamental Diagram for an Intersection: Application for a Roundabout

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 7, pp 359-372

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2023-07
Impact of Inconsistent Behavior of Drivers on Estimation of Critical Gap at Multi-Lane Roundabouts

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 7, pp 373-383

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2023-05
Headway Data Extraction and Highway Capacity Manual Capacity Function Calibration for Roundabouts With Roadside Lidar Data

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 5, pp 495-505

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2023-03
Analytical and Microsimulation Model Calibration and Validation: Application to Roundabouts under Sight-Restricted Conditions

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 3, pp 274-288

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2023-03
Identifying the Adaptability of Different Control Types Based on Delay and Capacity for Isolated Intersection

Transportation Research Record: Journal of the Transportation Research Board, Volume 2677, Issue 3, pp 33-45

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2023
Guide for Roundabouts

NCHRP Research Report, Issue 1043, 429p

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Showing 1 - 25 of 456 records