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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
Benefit
Date Posted
02/29/2024
Taxonomy (ARC-IT) Multi-modal Coordination (PT14), Automated Vehicle Operations (VS16)
Geolocation links
Nationwide, Japan

Use of Low-Pollution and Fuel-Efficient Vehicles, Such as Fuel Cell Electric Vehicles (FCEVs) and Plug-in Hybrid Electric Vehicles (PHEVs), for the Tokyo 2020 Olympic Games Led to an Average CO2 Emission Intensity of 50 Gram-CO2 Per Mile.

METHODOLOGY There were 2,654 passenger vehicles used in total during the Olympic/ Paralympic Games, and 95 percent of them were low-pollution and fuel-efficient. The total fuel consumption and total…
Content type
Benefit
Date Posted
07/26/2023
Taxonomy (ARC-IT) Low Emissions Zone Management (ST10)
Geolocation links
Tokyo, Japan

Add Auditory-Warning Systems to AV Shuttles to Ensure Pedestrian Safety, Especially for the Visually Impaired, Based on Lessons from the 2020 Tokyo Paralympic Games.

Lessons learned can be synthesized from media reporting as follows:  Add auditory-warning systems to AV Shuttles and consider additional human oversight for increased safety. After the incident…
Content type
Lesson
Date Posted
07/25/2023
Taxonomy (ARC-IT) Autonomous Vehicle Safety Systems (VS01), Vulnerable Road User Safety (VS12)
Geolocation links
Tokyo, Japan

Traffic Demand Management, Such As Discounted Late Night Toll Prices and Flexible Commuting Hours, Reduced Vehicle Flow by 10 Percent for Greater Tokyo Area and Delay by 80 Percent on Metropolitan Expressway During the Tokyo 2020 Olympic Games.

METHODOLOGYRegional data provided by the Japanese Ministry of Land, Infrastructure, Transport, and Tourism as well as the Tokyo Metropolitan Expressway Company Limited describe the effects that the…
Content type
Benefit
Date Posted
06/28/2023
Taxonomy (ARC-IT) Traffic Information Dissemination (TM06), Integrated Decision Support and Demand Management (TM09), Road Use Charging (TM11), Dynamic Lane Management and Shoulder Use (TM22)
Geolocation links
Tokyo, Japan

Simulation of a Urban Road Network with Only Shared Autonomous Vehicles Estimates a 94 Percent Reduction in Parking Demand but an Overall 32.5 Percent Higher Total Delay.

Methodology Researchers used simulation of urban road networks with dynamic route choice (SOUND) models to simulate driver behavior, and used Okinawa, Japan, as a case study, focusing on zones in…
Content type
Benefit
Date Posted
08/24/2022
Taxonomy (ARC-IT) Shared Use Mobility and Dynamic Ridesharing (TI06), Automated Vehicle Operations (VS16)
Geolocation links
Okinawa, Japan

Proposed data verification method capable of detecting more than 93 percent of all misbehavior attempts by using independent V2V location verification.

FINDINGS The method described in the paper was able to detect 93 percent of the falsified data, even when only one validation check was performed. This rate increased to 100 percent with higher…
Content type
Benefit
Date Posted
12/31/2018
Taxonomy (ARC-IT) ITS Data Warehouse (DM01), Data Distribution (SU03), Map Management (SU04), Object Registration and Discovery (SU06), Management of Electronic Traffic Regulations (METR) (VS17)
Geolocation links
Osaka, Japan

A survey of US and foreign Adaptive Traffic Control Systems (ATCS) users reported that 71 percent thought ATCS outperformed conventional traffic signal systems.

Methodology ATCS ideally outperform the traditional systems when the system is experiencing non-recurring congestion, such as that caused by incidents and special events. The benefits of these…
Content type
Benefit
Date Posted
10/31/2012
Taxonomy (ARC-IT) Traffic Signal Control (TM03), Connected Vehicle Traffic Signal System (TM04)
Geolocation links
Nationwide, Japan   |   Nationwide, United States   |   European Union   |   Nationwide, Canada

Simulation models show that real-time on-board driver assistance systems that recommend proper following distances can improve fuel economy by approximately 10 percent.

FINDINGS In general, the modeling effort indicated that predictive control systems can improve fuel economy. Average results from different vehicles under different conditions indicated the system…
Content type
Benefit
Date Posted
08/24/2010
Taxonomy (ARC-IT) Broadcast Traveler Information (TI01), Integrated Decision Support and Demand Management (TM09), Eco-Approach and Departure at Signalized Intersections (ST08), Freight Administration (CVO02), Autonomous Vehicle Safety Systems (VS01)
Geolocation links
Japan

When implementing traveler information systems that promote voluntary changes in travel behavior, incorporate functions for feedback, advice, and action-planning.

Researchers evaluating the Nagoya pilot program offered the following lessons learned. When implementing traveler information systems that encourage individuals to modify their travel behavior and…
Content type
Lesson
Date Posted
08/16/2010
Taxonomy (ARC-IT) Transit Traveler Information (PT08), Transit Pedestrian Indication (PT11), Transit Vehicle at Station/Stop Warnings (PT12), Personnel Device Maintenance (SU13), Broadcast Traveler Information (TI01), Trip Planning and Payment (TI04), Personalized Traveler Information (TI02)
Geolocation links
Aichi, Japan
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