scholarly journals Traffic Safety Analysis in an Underground Urban Expressway using MOVIC-T4

2006 ◽  
Vol 23 ◽  
pp. 797-804 ◽  
Author(s):  
Terumitsu HIRATA ◽  
Takashi MAHARA ◽  
Tetsuo YAI
Keyword(s):  
Traffic Safety ◽  
Safety Analysis ◽  
Urban Expressway

On-board monitoring system for road traffic safety analysis

2018 ◽  
Vol 98 ◽  
pp. 208-217 ◽  
Author(s):  
Sebastiano Battiato ◽  
Giovanni Maria Farinella ◽  
Giovanni Gallo ◽  
Oliver Giudice
Keyword(s):  
Monitoring System ◽  
Traffic Safety ◽  
Road Traffic ◽  
Safety Analysis ◽  
Road Traffic Safety ◽  
Board Monitoring

scholarly journals Investigating vehicle roadway usage patterns on the Shanghai urban expressway system and their impacts on traffic safety

2020 ◽  
Vol 15 (3) ◽  
pp. 217-228 ◽  
Author(s):  
Rongjie Yu ◽  
Yiyun Wang ◽  
Mohammed Quddus ◽  
Jian Li ◽  
Xuesong Wang ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Urban Expressway ◽  
Usage Patterns

scholarly journals An urban expressway forwarding scheme for cognitive Internet of vehicles

2020 ◽  
Vol 16 (3) ◽  
pp. 155014772091294
Author(s):  
Jing Wang ◽  
Huyin Zhang ◽  
Sheng Hao ◽  
Chuhao Fu
Keyword(s):  
Cognitive Radio ◽  
Traffic Safety ◽  
Smart Cities ◽  
Radio Spectrum ◽  
Base Stations ◽  
Radio Link ◽  
Integer Optimization ◽  
Internet Of Vehicles ◽  
Urban Expressway ◽  
Channel Availability

The Internet of vehicles is an essential component for building smart cities that can improve traffic safety and provide multimedia entertainment services. The cognitive radio–enabled Internet of vehicles was proposed to resolve the conflict between the increasing demand of Internet of vehicles applications and the limited spectrum resources. The multi-hop transmission is one of the most important issues in cognitive radio–enabled Internet of vehicles networks. Nevertheless, most existing forwarding solutions designed for the cognitive radio–enabled Internet of vehicles did not consider the urban expressway scenario, where primary base stations are densely installed with small coverage areas. In this case, it is difficult to ensure that the sender and the receiver of the same cognitive radio link have similar channel availability statistics, which makes cognitive radio links more likely to be interrupted. To address this challenge, we develop a multi-hop forwarding scheme to minimize the end-to-end delay for such networks. We first formulate the delay minimization problem as a non-linear integer optimization problem. Then, we propose an approach to select the relay candidates by jointly considering the high mobility of vehicles and the unique cognitive radio spectrum usage distributions in urban expressway scenarios. Finally, we propose the low-latency forwarding strategies by considering the channel availability and the delay cost of different situations of relay candidates. Simulations show the advantages of our proposed scheme, compared with state-of-art methods.

Empirical Analysis on Time to Collision at Urban Expressway

2014 ◽  
Vol 505-506 ◽  
pp. 1127-1132 ◽  
Author(s):  
Cheng Xu ◽  
Zhao Wei Qu
Keyword(s):  
Empirical Analysis ◽  
Traffic Safety ◽  
Traffic Volume ◽  
T Test ◽  
Descriptive Statistics ◽  
Traffic Condition ◽  
Time To Collision ◽  
Traffic Conditions ◽  
Urban Expressway ◽  
Traffic Conflicts

Traffic safety is of great significance, especially at urban expressway where traffic volume is large and traffic conflicts are highlighted. But little research up to date has discussed in detail how these factors impact the TTC characteristics. In this paper, field Beijing expressway data were collected by video with different locations, lanes, traffic conditions and following vehicle types. Accordingly, some basic descriptive statistics of total TTC samples were shown and analyzed. We then used T-test to analyze the effect of road environments, traffic conditions, and vehicle types on TTC statistically. The results implied three main findings. Firstly, TTC was found to change according to road environments (i.e. TTC on weaving segment is smaller than other locations), secondly, some evidence supported this hypothesis that traffic conditions (especially uncongested traffic condition) affect TTC significantly, and lastly, little correlation was found between TTC means and vehicle types.

Traffic Safety Evaluation of Video Advertising Signs

2005 ◽  
Vol 1937 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Alison Smiley ◽  
Bhagwant Persaud ◽  
Geni Bahar ◽  
Calvin Mollett ◽  
Craig Lyon ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Safety Evaluation ◽  
Driver Distraction ◽  
Eye Fixation ◽  
Crash Data ◽  
Video Advertising ◽  
Urban Expressway ◽  
Public Survey ◽  
Before And After ◽  
The Right

Road authorities are under increasing pressure from advertisers to allow video advertising in the right-of-way but are understandably concerned about whether video signs constitute a driving hazard. At the City of Toronto's request, a comprehensive assessment of traffic safety impacts related to such signs was carried out in a series of studies involving three downtown intersections and an urban expressway site. An on-road eye fixation study was carried out to determine if drivers look at video advertising signs. Conflict studies were conducted to determine if there were more conflicts on intersection approaches with visible video signs than on those without such signs. A before-and-after sign installation study of headways and speeds on the urban expressway was carried out. Crashes were compared before and after sign installation at the expressway and three intersection sites. Finally, a public survey was conducted to determine if video advertising was perceived to affect traffic safety. On the basis of the eye fixation study and the public survey data, it is apparent that video advertising can distract drivers inappropriately and lead to individual crashes. However, the evidence from other studies was not consistent and suggests that for the particular signs studied, overall impacts on traffic safety are likely to be small. Further studies, especially prospective ones with larger crash data sets, are required to be certain about the findings. A comparison between this study and an earlier one suggests that there are large differences in driver distraction depending on the placement and the environment in which the sign is seen. Further studies are required to determine factors that minimize driver distraction.

Traffic safety analysis of powered two-wheelers (PTWs) in Slovenia

2012 ◽  
Vol 49 ◽  
pp. 36-43 ◽  
Author(s):  
Matjaž Šraml ◽  
Tomaž Tollazzi ◽  
Marko Renčelj
Keyword(s):  
Traffic Safety ◽  
Safety Analysis

A community traffic safety analysis of pedestrian and bicyclist injuries based on the catchment area of a trauma center

2014 ◽  
Vol 76 (4) ◽  
pp. 1103-1110 ◽  
Author(s):  
Dekeya R. Slaughter ◽  
Nick Williams ◽  
Stephen P. Wall ◽  
Nina E. Glass ◽  
Ronald Simon ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Trauma Center ◽  
Catchment Area ◽  
Safety Analysis
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