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A Case Study in Budapest, Hungary Showed Scenarios with Substantial Shared Automated Vehicle Use May Reduce Parking Demand by Up to 83 Percent.

METHODOLOGY In this study, the researchers conducted a survey to gain insights into the aspects needed for scenario building; namely, status quo and change in habits and preferences regarding car…
Content type
Date Posted
02/29/2024

Japanese Study Revealed that Automated Buses and Taxis Can Reduce Travel Costs Up to 11 Percent in Bus Trips and 61 Percent in Taxi Trips, Respectively.

METHODOLOGY In this study, taxi operating costs were computed following the methodology from another research study from 2018, where the operating costs of taxis both with and without ride sharing…
Content type
Date Posted
02/29/2024

Mathematical Model Revealed that Automated Vehicles Can Achieve 40-50 Percent Gains in Spatial Efficiency for Off-Street Parking Facilities.

METHODOLOGY The study formulated a methodology based on certain premises to optimize parking capacity in single-story, obstruction-free parking lots with square or rectangular layouts. It assumed AVs…
Content type
Date Posted
02/29/2024

A Study Evaluating Audio- and Image-Based In-Vehicle Warning Messages in Work Zones Found a 16.4 Percent Reduction in CO2 Emissions Using Mixed Messages Compared to a No Message Scenario.

METHODOLOGY This study tested three scenarios: (i) work zone with no audio or image warning system (NO MESSAGE), (ii) work zone with a voice warning system (VOICE MESSAGES), and (iii) work zone with…
Content type
Date Posted
02/29/2024

Driver Simulator Study 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

Field Driving Study in India Showed Statistically Significant, Up to 64.3 Percent Reduction in Lane Departure Warnings Across All Age Groups with Active Lane Departure Assistance.

METHODOLOGY The test vehicle used in this study was an instrumented passenger car equipped withADAS, a Global Positioning System, and lasers. During the FOT, the participants completed 60 trips, 30…
Content type
Date Posted
02/29/2024

Consider Data Collection Capability When Selecting Performance Measures for Mobile Device-Based Systems.

Identify local stakeholder and transportation infrastructure needs. This could be best achieved by outreach efforts with stakeholder engagement and technical working group meetings to ensure…
Content type
Date Posted
01/31/2024

Conduct Yearly Solar Panel Maintenance Including Surface Cleaning and Charging Output Tests When Using Solar Powered Intelligent Warning Devices

Conduct yearly solar panel reviews including surface cleaning and charging output tests when using any solar powered systems. While these systems often use maintenance-free batteries, it is…
Content type
Date Posted
01/31/2024

Microsimulation of A Signalized Intersection in Florida Estimated that Connected Vehicles Can Reduce Travel Times by up to 17 Percent at Full Penetration Due to Increased Likelihood of Arriving-On-Green.

METHODOLOGY The study leveraged the existing application programming interface (API) capabilities of the traffic simulation tool to emulate the CAV operations. Three simulation cases were considered…
Content type
Date Posted
01/29/2024