01733745

Component

https://doi.org/10.1177/0361198120912235

By using a large data-base of single vehicle data from a German freeway, the fundamental diagram (FD) can be extended. These types of data allow extraction of additional information that can be displayed as a function of the traffic flow Q and speed V. This is demonstrated here with a surrogate measure of safety (SMoS) and two other indices, which can be used to perform more in-depth analyses of traffic flow. In the case of the SMoS, it is possible to identify more and less dangerous regions in the extended FD.

© National Academy of Sciences: Transportation Research Board 2020.

English

pp 292-299

2020-4

Transportation Research Record: Journal of the Transportation Research Board

Web

References (18)

Data analysis; Expressways; Traffic density; Traffic flow; Traffic safety; Traffic speed

Germany

Data and Information Technology; Highways; Operations and Traffic Management

TRIS, TRB, ATRI

Mar 13 2020 3:03PM

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• Application Tool for Two-Variable Cost Allocation for Small Urban, Rural, and Tribal Transit Agencies
• Assessment of the Impact of Fiber Types on the Performance of Fiber-Reinforced Hot Mix Asphalt
• Asymmetric Exchange Rate Effects on Cross-Border Freight Flows between the United States and Canada
• Before-and-After Empirical Bayes Evaluation of Citywide Installation of Driver Feedback Signs
• Data-Driven Method to Study the Impact of Utilizing Electric Ground Power Systems on Airport Electricity Demand Profile
• Determination and Utilization of Dilemma Zone Length and Location for Safety Assessment of Rural High-Speed Signalized Intersections
• Determining the Relationship Among Hamburg Wheel-Tracking Test Parameters and Correlation to Field Performance of Asphalt Pavements
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• Effects of Elastomeric Bearing Stiffness on the Structural Behavior of Bonded Link-Slabs
• Efficient Algorithm for the Traffic Assignment Problem with Side Constraints
• Empirical Study on the Properties of Adaptive Cruise Control Systems and Their Impact on Traffic Flow and String Stability
• Evaluating Advancements in Bluetooth Technology for Travel Time and Segment Speed Studies
• Exploring Artificial Neural Network to Evaluate the Undrained Shear Strength of Soil from Cone Penetration Test Data
• Field Characterization of Pavement Materials using Falling Weight Deflectometer and Sensor Data from an Instrumented Pavement Section
• Impact of Detector Configuration on Performance Measurement and Signal Operations
• Impact of Transit-Oriented Development on Residential Property Values around Urban Rail Stations
• Importance of Automobile Mode Share in Understanding the Full Impact of Urban Form on Work-Based Vehicle Distance Traveled
• Incorporating Calibrated Numerical Models in Estimating Moduli of Compacted Geomaterials from Integrated Intelligent Compaction Measurements and Laboratory Testing
• Interfacial Shear Bond Strength between Steel H-Piles and Polymer Concrete Jackets
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