Displaying 1 - 10 of 39

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Driver Simulator Study Testing Different Human–Machine Interfaces (HMI) Found Vehicle Speed Reduced by up to 16 Percent Under Level Three Automation After Takeover.

METHODOLOGY A driving simulator study was conducted in which two groups of drivers experienced one of two different HMI designs. One group experienced a Staged HMI design including a two-stage…
Content type
Date Posted
02/28/2024

System Dynamics Model Sensitivity Analysis in a Generic Rural Area Revealed Up to a 67 Percent Reduction in Traveler Wait Time with Automated Services Compared to Human-Driven Vehicles.

METHODOLOGY The sensitivity analysis assumed little transit and no TNC services in rural areas. The analysis considered three scenarios including human driven vehicles (HDV), automated vehicles (AV…
Content type
Date Posted
07/27/2023

Study of Electronic Open Road Tolling Application near Boston Finds Reductions of Vehicle' Particulate Matter by up to 61 Percent and Energy Consumption by up to 28 percent.

METHODOLOGY Microscopic traffic simulation models were used to generate vehicle operating mode distributions for three tolling configurations: conventional full stop (queueing and idling through…
Content type
Date Posted
05/26/2023

Simulation of a Fully Automated Bicycle Sharing System Showed Higher Bicycle Usage, with over 96 Percent of Bicycles Used in a Week, Compared to 92 Percent with a Station-Based Bike Sharing System Having a Fleet Size 3.5 Times Larger.

Methodology An agent-based, discrete event-based simulation model was developed for the study, using historical usage data from a public bike-sharing system in the Boston area for the period October…
Content type
Date Posted
11/28/2022

Study Finds that Drones Near Roadways at Any Height Between 20 and 60 Feet are Equally Distracting to Drivers, Both Visually and Cognitively.

Beware that driver distraction risks associated with flying UAS near roadways are both visual and cognitive. In this study, participants who had seen a drone while driving remembered these…
Content type
Date Posted
05/27/2022

Advanced Traffic Signal Heads Designed with Flashing Yellow Permissive Left-Turn Arrows Have Estimated Benefit-to-Cost Ratios Ranging from 11 to 187.

METHODOLOGY The 166 FYA intersections were evaluated in three treatment categories: Category 1: 3-way intersections with one FYA approach; Category 2: 4-way intersections with one FYA approach; and…
Content type
Date Posted
11/24/2021

Continued Use of Automated Driver Assistance Systems Found to be Associated with Increased Driver Disengagement and Risky Driving Behavior.

Although partially automated vehicles can relieve some of the fatigue of driving, recent studies have raised significant questions about the safety of these systems. Specifically, partially…
Content type
Date Posted
11/24/2020

Zone-based pricing is more effective at changing driver behavior than block-based pricing.

The report found that performance parking is an effective tool to increase parking availability, lower congestion, and improve road safety. The zone-based performance parking…
Content type
Date Posted
01/23/2020

Plan for operational challenges such as the need for data verification and number of parking spaces when implementing performance parking.

The report found that performance parking is an effective tool to increase parking availability, lower congestion, and improve road safety. However, there were operational challenges…
Content type
Date Posted
01/23/2020