Author: Robert AshworthPublisher:
ISBN:
Category : Automobile driving on highways
Languages : en
Pages :
Book Description
Driver Gap-acceptance Behaviour at Priority-type Intersections
Author: Robert AshworthPublisher:
ISBN:
Category : Automobile driving on highways
Languages : en
Pages :
Book Description
Modeling Gap Acceptance and Driver Behavior at Stopped Controlled Intersections (priority Intersections)
Author: Rene' Senyo Lord-AttivorPublisher:
ISBN:
Category : Automobile driving on highways
Languages : en
Pages : 1030
Book Description
Priority intersections are intersections controlled by a stop or yield sign. A vehicle at a priority intersection from a minor road makes a choice to either accept or reject an available gap when joining or crossing the main road. Various factors affect the driver's decision to accept or reject a gap at the priority intersection. The characteristics of the driver, vehicle and the intersection itself play major roles in the driver's behavior at the intersection. Factors such as the driver's age, gender, waiting time, intersection delay, and the vehicles' accelerating capability affect the decision to accept or reject a gap. The gap acceptance concept in developed countries (e.g., United States of America) has historically been studied and researched at signalized and unsignalized intersections. However, in developing countries little research has been conducted on this concept or on the driver's behavior, particularly Ghana. Yet traffic analysis software programs built to suit a developed country's condition are often used to analyze intersections in developing countries like Ghana. Ghanaian engineers have yet to develop a gap acceptance model suitable for unsignalized intersections. This research analyzes gaps and driver behavior at unsignalized intersections for both cross (4 leg) intersections and T-intersections for left, right and through moving vehicles from minor roads onto major roads; left turning vehicles from the major roads onto the minor roads are also analyzed. Critical gap values and the most common driver's variable is determined. The results of the critical gaps values found in this research are compared to that of the recommended values from the 2010 Highway Capacity Manual (HCM). The results of the analysis showed critical gaps lower than that of the recommended values from the 2010 HCM. A comparison between the critical gaps determined in this research and the recommended 2010 HCM critical gaps showed lower delays when the critical gaps found in this research were modeled in aaSidra and the Highway Capacity Software (HCS). The Logistics Regression analysis showed that most drivers at priority intersections will accept gaps equal or greater than the critical gap determined in this research. The analysis also showed that pedestrian and hawking activities at intersections are not contributing factors to a driver's decision in accepting a gap. The driver's decision to accept or reject a gap varied between locations. Although the driver's decision to accept or reject a gap varied between locations, the most common factor (variable) that affected a driver's decision to accept or reject a gap was the time spent at the stop sign. -- Abstract.
Driver Behaviour at Priority Type Intersections
Author: C. G. BottomA Concise Introduction to Traffic Engineering
Author: Marco GuerrieriPublisher: Springer Nature
ISBN: 3030607232
Category : Technology & Engineering
Languages : en
Pages : 196
Book Description
This book covers a selection of fundamental topics of traffic engineering useful for highways facilities design and control. The treatment is concise but it does not neglect to examine the most recent and crucial theoretical aspects which are at the root of numerous highway engineering applications, like, for instance, the essential aspects of highways traffic stream reliability calculation and automated highway systems control. In order to make these topics easy to follow, several illustrative worked examples of applications are provided in great detail. An intuitive and discursive, rather than formal, style has been adopted throughout the contents. As such, the book offers up-to-date and practical knowledge on several aspects of traffic engineering, which is of interest to a wide audience including students, researchers as well as transportation planners, public transport specialists, city planners and decision-makers.
Gap Acceptance at Non-standard Stop-controlled Intersections
Author: J. L. GattisPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 70
Book Description
This report presents the study of minor street drivers' gap and lag acceptance and rejection at a non-standard stop-controlled T-intersection. In this context, non-standard stop-controlled intersections are those at which priority right-of-way is given to a left-turning traffic stream. The arrival and departure times of all vehicles entering the intersection were collected with a traffic classifier and video camera. Lag/gap acceptance and rejection values were found for several specific movement combinations. The resulting critical lag and gap values varied over a wide range, depending upon the method used to derive them and the particular movement pattern being considered. Values ranged from 1.8 to 9.0 seconds, with the majority of the critical gap values higher than the critical lag values for the same movement. The lower lag/gap values were from a movement pair associated with non-standard control: drivers stopped to wait on the oncoming traffic stream having the right-of-way often choose to proceed when oncoming vehicles are close, assuming that if an oncoming vehicle has not reduced its speed by the time it is close to the intersection, it will probably proceed through and not turn left. At the intersection studied, this non-standard stop-controlled pattern sometimes caused confusion among drivers and excessive delay on minor street approaches during high traffic volume periods.
Highway Safety Literature
Author: Transformation of Transportation
Author: Marjana PetrovićPublisher: Springer Nature
ISBN: 3030664643
Category : Technology & Engineering
Languages : en
Pages : 226
Book Description
This book features original scientific manuscripts submitted for publication at the International Conference – The Science and Development of Transport (ZIRP 2020), organized by University of Zagreb, Faculty of Transport and Traffic Sciences, Zagreb, and held in Šibenik, Croatia, from 29th to 30th September 2020. The conference brought together scientists and practitioners to share innovative solutions available to everyone. Presenting the latest scientific research, case studies and best practices in the fields of transport and logistics, the book covers topics such as sustainable urban mobility and logistics, safety and policy, data science, process automation, and inventory forecasting, improving competitiveness in the transport and logistics services market and increasing customer satisfaction. The book is of interest to experienced researchers and professionals as well as Ph.D. students in the fields of transport and logistics.
Macroscopic Review of Driver Gap Acceptance and Rejection Behavior at Rural Thru-stop Intersections in the Us ? Data Collection Results for Eight States
Author: U.s. Department of TransportationPublisher: CreateSpace
ISBN: 9781494343187
Category : Transportation
Languages : en
Pages : 78
Book Description
Crashes at rural thru-stop intersections arise primarily from a driver attempting to cross or enter the mainline traffic stream after failing to recognize an unsafe gap condition. Because the primary cause of these crashes is not failure to stop, but failure to recognize an unsafe condition, the US DOT FHWA, Mn/DOT, and the University of Minnesota ITS Institute undertook the CICAS-SSA program. CICAS-SSA uses roadside radar sensors, a computer processor and algorithms to determine unsafe conditions, and an active LED icon based sign to provide timely alerts and warnings which are designed to reduce the frequency of crashes at rural expressway intersections.
Highway Safety Literature
Author: Transportation Research
Author: Tom V. MathewPublisher: Springer Nature
ISBN: 9813290420
Category : Technology & Engineering
Languages : en
Pages : 905
Book Description
This book presents selected papers from the 4th Conference of the Transportation Research Group of India. It provides a comprehensive analysis of themes spanning the field of transportation encompassing economics, financial management, social equity, green technologies, operations research, big data analysis, econometrics and structural mechanics. This volume will be of interest to researchers, educators, practitioners, managers, and policy-makers world-wide.