Impact of information feedback strategy on the car accidents in two-route scenario

2018 ◽  
Vol 29 (09) ◽  
pp. 1850081 ◽  
Author(s):  
R. Marzoug ◽  
N. Lakouari ◽  
O. Oubram ◽  
H. Ez-Zahraouy ◽  
L. Cisneros-Villalobos ◽  
...  
Keyword(s):  
Traffic Flow ◽  
Road Safety ◽  
Information Feedback ◽  
Dynamic Information ◽  
Feedback Strategy ◽  
Car Accidents ◽  
New Strategy ◽  
Feedback Strategies ◽  
The Impact

Various feedback strategies are proposed to improve the traffic flow. However, most of these works did not take road safety into consideration. In this paper, we studied the impact of four feedback strategies on the probability of rear-end collisions ([Formula: see text]). We proposed a new feedback strategy named Accidents Coefficient Feedback Strategy (ACFS) in which dynamic information can be generated and displayed on a board at the entrance of two-route scenario with intersection to help drivers to choose the appropriate road. This new strategy can greatly improve road safety and make the flow smooth as possible at the same time. Moreover, the impact of the intersection and boundary rates ([Formula: see text] and [Formula: see text]) on [Formula: see text] is also studied.

scholarly journals The Impact of Systems of Automatic Photo and Video Recording of Road Traffic Offenses on Lowering the Accident Incidence Rate

2021 ◽  
Vol 8 ◽  
pp. 68-71
Author(s):  
Svetlana A. Zhbanova ◽  
Keyword(s):  
Automatic Control ◽  
Traffic Flow ◽  
Road Safety ◽  
Road Traffic ◽  
Video Recording ◽  
Legal Aspects ◽  
Comprehensive Analysis ◽  
The Impact ◽  
Climatic Features ◽  
Objective Recording

The paper examines the features of the use of automatic control of offenses in the field of road traffic, taking into account the territorial and climatic features of the Khabarovsk region, their impact on road safety. The author analyzes the main problems, as well as offers solutions for better and more objective recording of traffic flow and accident prevention. The novelty of the research consists in a comprehensive analysis of the theoretical and legal aspects of the fundamental ideas of road safety.

Simulation study of car accidents at the intersection of two roads in the mixed traffic flow

2015 ◽  
Vol 26 (01) ◽  
pp. 1550007 ◽  
Author(s):  
R. Marzoug ◽  
H. Ez-Zahraouy ◽  
A. Benyoussef
Keyword(s):  
Cellular Automata ◽  
Traffic Flow ◽  
Critical Density ◽  
Mixed Traffic ◽  
Priority Rules ◽  
Mixed Traffic Flow ◽  
Car Accidents ◽  
First Case ◽  
Accident Probability ◽  
The Impact

Using cellular automata (CA) Nagel–Schreckenberg (NaSch) model, we numerically study the probability P ac of the occurrence of car accidents at nonsignalized intersection when drivers do not respect the priority rules. We also investigated the impact of mixture lengths and velocities of vehicles on this probability. It is found that in the first case, where vehicles distinguished only by their lengths, the car accidents start to occur above a critical density ρc. Furthermore, the increase of the fraction of long vehicles (FL) delays the occurrence of car accidents (increasing ρc) and increases the risk of collisions when ρ > ρc. In other side, the mixture of maximum velocities (with same length for all vehicles) leads to the appearance of accidents at the intersection even in the free flow regime. Moreover, the increase of the fraction of fast vehicles (Ff) reduces the accident probability (P ac ). The influence of roads length is also studied. We found that the decrease of the roads length enhance the risk of collision.

Modeling and simulation of network traffic flow evolution based on incomplete information feedback strategies in the ATIS environment

2017 ◽  
Vol 08 (03) ◽  
pp. 1750031
Author(s):  
Jianqiang Wang ◽  
Shiwei Li
Keyword(s):  
Incomplete Information ◽  
Travel Time ◽  
Traffic Flow ◽  
Network Traffic ◽  
Route Choice ◽  
Road Networks ◽  
Urban Traffic ◽  
Traffic Information ◽  
Information Feedback ◽  
Feedback Strategies

Considering both the high complexity of urban traffic flow systems and the bounded rationality of travelers, providing traffic information to all travelers is an effective method to induce each individual to make a more rational route-choice decision. Within Advanced Traveler Information System (ATIS) working environment, temporal and spatial evolution processes of traffic flow in urban road networks are closely related to strategies of providing traffic information and contents of information. In view of the day-to-day route-choice situations, this study constructs original updating models of the cognitive travel time of travelers under four conditions, including not providing any route travel time, only providing the most rapid route travel time, only providing the most congested route travel time, and providing all the routes travel times. The disaggregate route-choice approach is adopted for simulation to reveal the relationship between the evolution process of network traffic flow and the strategy of providing traffic information. The simulation shows that providing traffic information to all travelers cannot improve the operational efficiency of road networks. It is noteworthy that an inappropriate information feedback strategy would lead to intense variation in various routes traffic flow. Compared with incomplete information feedback strategies, it is inefficient and superfluous to provide complete traffic information to all travelers.

EFFECTS OF VEHICLE NUMBER FEEDBACK IN MULTI-ROUTE INTELLIGENT TRAFFIC SYSTEMS

2010 ◽  
Vol 21 (08) ◽  
pp. 1081-1093 ◽  
Author(s):  
CHUANFEI DONG ◽  
XU MA ◽  
BINGHONG WANG
Keyword(s):  
Traffic Flow ◽  
High Efficiency ◽  
Arrival Rate ◽  
Mean Velocity ◽  
Feedback Strategy ◽  
Road Users ◽  
Feedback Strategies ◽  
Average Flux ◽  
Traffic Systems ◽  
Real Time Information

We first study dynamics of traffic flow with real-time information and the influence of a new feedback strategy named Vehicle Number Feedback Strategy (VNFS) in a multi-route scenario in which dynamic information can be generated and displayed on the board (the board refers to a variable message sign where information on the routes is displayed) to guide road users to make a choice. In a multi-route scenario, our model incorporates the effects of adaptability into the cellular automaton models of traffic flow and simulation results adopting vehicle number feedback strategy have demonstrated high efficiency in controlling spatial distribution of traffic patterns compared with the other three information feedback strategies, i.e. Travel Time Feedback Strategy (TTFS), Mean Velocity Feedback Strategy (MVFS) and Congestion Coefficient Feedback Strategy (CCFS). We also discuss the influence of expected arrival rate (Vp) at the entrance on the average flux of each route, and we find that the flux adopting VNFS is always the largest at each Vp value among these four feedback strategies.

scholarly journals 8A.007 Evaluating the impact of a road safety education project in Madagascar schools

2021 ◽  
Author(s):  
Paolo Perego ◽  
Federica Biassoni ◽  
Ana Luisa Silva ◽  
Sam Clark ◽  
Jesse Randrianarisoa
Keyword(s):  
Road Safety ◽  
Safety Education ◽  
Education Project ◽  
The Impact

scholarly journals Driver Liability Assessment in Vehicle Collisions in Spain

2021 ◽  
Vol 18 (4) ◽  
pp. 1475
Author(s):  
Almudena Sanjurjo-de-No ◽  
Blanca Arenas-Ramírez ◽  
José Mira ◽  
Francisco Aparicio-Izquierdo
Keyword(s):  
Road Safety ◽  
Accurate Estimation ◽  
Main Hypothesis ◽  
Self Organizing Maps ◽  
Safety Measures ◽  
Vehicle Collisions ◽  
Promising Tool ◽  
Visual Clustering ◽  
Open Question ◽  
The Impact

An accurate estimation of exposure is essential for road collision rate estimation, which is key when evaluating the impact of road safety measures. The quasi-induced exposure method was developed to estimate relative exposure for different driver groups based on its main hypothesis: the not-at-fault drivers involved in two-vehicle collisions are taken as a random sample of driver populations. Liability assignment is thus crucial in this method to identify not-at-fault drivers, but often no liability labels are given in collision records, so unsupervised analysis tools are required. To date, most researchers consider only driver and speed offences in liability assignment, but an open question is if more information could be added. To this end, in this paper, the visual clustering technique of self-organizing maps (SOM) has been applied to better understand the multivariate structure in the data, to find out the most important variables for driver liability, analyzing their influence, and to identify relevant liability patterns. The results show that alcohol/drug use could be influential on liability and further analysis is required for disability and sudden illness. More information has been used, given that a larger proportion of the data was considered. SOM thus appears as a promising tool for liability assessment.

scholarly journals Research on the impact of ship traffic flow on the restricted channel segment of the middle Yangtze River based on traffic wave theory

2021 ◽  
Vol 3 (8) ◽  
Author(s):  
Ting Liu ◽  
Gabriel Lodewijks
Keyword(s):  
Traffic Flow ◽  
Flow Rate ◽  
Flow Simulation ◽  
Wave Theory ◽  
Flow Density ◽  
List Type ◽  
Ship Traffic ◽  
Traffic Wave ◽  
The Impact ◽  
Channel Segment

Abstract Abstract On the basis of the influence of dry season on ship traffic flow, the gathering and dissipating process of ship traffic flow was researched with Greenshields linear flow—density relationship model, the intrinsic relationship between the ship traffic congestion state and traffic wave in the unclosed restricted channel segment was emphatically explored when the ship traffic flow in a tributary channel inflows, and the influence law of multiple traffic waves on the ship traffic flow characteristics in unclosed restricted segment is revealed. On this basis, the expressions of traffic wave speed and direction, dissipation time of queued ships and the number of ships affected were provided, and combined with Monte Carlo method, the ship traffic flow simulation model in the restricted channel segment was built. The simulation results show that in closed restricted channel segment the dissipation time of ships queued is mainly related to the ship traffic flow rate of segments A and C, and the total number of ships affected to the ship traffic flow rate of segment A. And in unclosed restricted channel segment, the dissipation time and the total number of ships affected are also determined by the meeting time of the traffic waves in addition to the ship traffic flow rate of segments. The research results can provide the theoretical support for further studying the ship traffic flow in unclosed restricted channel segment with multiple tributaries Article Highlights The inflow of tributaries' ship traffic flows has an obvious impact on the traffic conditions in the unenclosed restricted channel segment. The interaction and influence between multiple ship traffic waves and the mechanism of generating new traffic waves are explained. The expression of both dissipation time of queued ships and the total number of ships affected in the closed and unclosed restricted channel segment are given.

Sign in / Sign up

Export Citation Format

Share Document