scholarly journals Resilience Modeling of Surface Transportation System in Mixed Traffic Environment

2018 ◽  
Author(s):  
Shofiq Ahmed
Keyword(s):  
Transportation System ◽  
Mixed Traffic ◽  
Surface Transportation ◽  
Traffic Environment

scholarly journals Factors Influencing and Contributing to Perceived Safety of Passengers during Driverless Shuttle Rides

2021 ◽  
Vol 1 (3) ◽  
pp. 657-671
Author(s):  
Claudia Luger-Bazinger ◽  
Cornelia Zankl ◽  
Karin Klieber ◽  
Veronika Hornung-Prähauser ◽  
Karl Rehrl
Keyword(s):  
Autonomous Driving ◽  
Future Research ◽  
Natural Setting ◽  
Mixed Traffic ◽  
Control Room ◽  
Driving Style ◽  
Perceived Safety ◽  
Factors Influencing ◽  
Traffic Environment ◽  
Set Up

This study investigates the perceived safety of passengers while being on board of a driverless shuttle without a steward present. The aim of the study is to draw conclusions on factors that influence and contribute to perceived safety of passengers in driverless shuttles. For this, four different test rides were conducted, representing aspects that might challenge passengers’ perceived safety once driverless shuttles become part of public transport: passengers had to ride the shuttle on their own (without a steward present), had to interact with another passenger, and had to react to two different unexpected technical difficulties. Passengers were then asked what had influenced their perceived safety and what would contribute to it. Results show that perceived safety of passengers was high across all different test rides. The most important factors influencing the perceived safety of passengers were the shuttle’s driving style and passengers’ trust in the technology. The driving style was increasingly less important as the passengers gained experience with the driverless shuttle. Readily available contact with someone in a control room would significantly contribute to an increase in perceived safety while riding a driverless shuttle. For researchers, as well as technicians in the field of autonomous driving, our findings could inform the design and set-up of driverless shuttles in order to increase perceived safety; for example, how to signal passengers that there is always the possibility of contact to someone in a control room. Reacting to these concerns and challenges will further help to foster acceptance of AVs in society. Future research should explore our findings in an even more natural setting, e.g., a controlled mixed traffic environment.

scholarly journals An Efficient Scheduling of Flyover at Grade Intersection under Mixed Traffic Environment

2021 ◽  
Vol 9 (VI) ◽  
pp. 824-833
Author(s):  
Shradha S. Zanjad
Keyword(s):  
Queue Length ◽  
Fixed Time ◽  
Flow Speed ◽  
Free Flow ◽  
Mixed Traffic ◽  
Time Control ◽  
Traffic Environment ◽  
Free Flow Speed ◽  
Big Cities

A flyover is a bridge constructed along an intersecting highway over an at-grade intersection. It allows two –direction traffic to flow at free flow speed on the bridge. The flyover is one of the methods for solving traffic problems at at-grade junctions on highways including capacity, congestion, long delay and queue length. Traffic signalization at the upgraded intersection often uses the same fixed time control plans, even after the installation of a flyover over the intersection. Most of the flyovers in India are constructed at the junctions on highway bypasses of big cities. The present work deals with a efficient scheduling of flyover at the grade intersection under the mixed traffic environment. From the results and the modeling carried out in the “SIDRA Intersection” software different points are observed. The present work consists of the Proposed Intersection at Rajkamal Square, Amravati.

Technical Report of Southern California Association of Governments’ Transportation Performance Indicators

1997 ◽  
Vol 1606 (1) ◽  
pp. 103-114 ◽  
Author(s):  
Hasan Ikhrata ◽  
Patrick Michell
Keyword(s):  
Performance Indicators ◽  
Southern California ◽  
Transportation System ◽  
Public And Private ◽  
Technical Report ◽  
Surface Transportation ◽  
Broad Array ◽  
Clean Air ◽  
Traditional Approaches ◽  
Environment Cost

The overall goal of the staff of the Southern California Association of Governments (SCAG) is to develop specific, quantifiable, and easily understandable performance indicators for the region’s transportation system that better inform elected officials and policy boards of the broad array of choices for investing public and private funds. SCAG’s performance indicators are intended to capture the important relationships between transportation and a diversity of public policy concerns. The seven performance indicators used in the preparation of the 1997 Regional Transportation Plan (RTP) are mobility, accessibility, environment, cost-effectiveness, reliability, safety, and customer satisfaction. SCAG applies these performance indicators to each of its 13 subregions and to the region as a whole. The federal Intermodal Surface Transportation Efficiency Act of 1991 and Clean Air Act Amendments of 1990, and SCAG’s 1994 Regional Mobility Element, set the stage for the abandonment of the old and popular level of service measure. SCAG’s performance indicators approach the concept of performance from the perspective of the users of the transportation system, in contrast to traditional approaches that focused more on facilities and vehicles. SCAG is currently at approximately the midpoint in the development of the 1997 RTP and therefore has considerable practice in working with the performance indicators. This experience confirms the value of performance indicators as a planning tool.

scholarly journals A Platoon Formation Framework in a Mixed Traffic Environment

2021 ◽  
pp. 1-1
Author(s):  
A M Ishtiaque Mahbub ◽  
Andreas A. Malikopoulos
Keyword(s):  
Mixed Traffic ◽  
Traffic Environment
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