United States Department of Transportation
i
Vehicle to Infrastructure (V2I) and Vehicle to Vehicle (V2V) Passenger and Freight Vehicle Applications to Enhance Safety and Efficiency in Coastal Evacuations
-
2023-09-01
[PDF-1.79 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final Research Report
-
Corporate Publisher:
-
Abstract:Connected and automated vehicle (CAVs) technology has the potential to improve traffic efficiency and safety by providing advisories related to different traffic, road, and environmental conditions. Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communications are two key communication systems of connected vehicle technology. Previous research focusing on the use of CAVs technology during evacuation period lacks examining drivers’ behavior in such situations. Therefore, this study aimed to investigate drivers’ response and acceptance to the CAVs technology provided through V2I and V2V communications during a hurricane evacuation. A driving simulator experiment was designed (including two scenarios) and seventy-nine drivers from different age groups drove those scenarios. The first scenario was a base scenario with no warnings while the second scenario included three V2I warning messages and one V2V warning message. The V2I messages included rain warning, congestion warning and alternate route information whereas the V2V message was a warning regarding a potential rear end crash with the vehicle at front. The warnings were provided through both in-vehicle display and audio messages. The results indicated that around 90% drivers complied with V2I rain warning, V2V potential crash warning and V2I alternate route information whereas less than 50% drivers complied with the V2I congestion warning. It was found also that the rain warning resulted in lower average speed during rain, the congestion warning resulted in higher time-to-collision (TTC), and the V2V crash warning resulted in higher TTC compared to the situation where no warnings were provided, indicating safe traffic operation during the evacuation time. When providing an advisory through in-vehicle display and audio messages about an alternate route (with shortest path) that can be used during evacuation to avoid traffic congestion on the main road, it was found that 74 drivers (out of 79 drivers) took the alternate route while only 23 drivers did the same in the presence of dynamic message sign (DMS) only. After participating in the experiment more than 80% of the drivers reported that the provided V2I and V2V messages were extremely useful or useful. The insights gained from this research can help in the design and implementation of connected vehicle technologies to improve transportation systems' performance during critical events like hurricane evacuation.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
