Roadway Risk Map Establishment Based on Features of Roadway Design and Traffic Situation

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Zhen Gao ◽  
Jingning Xu ◽  
Jiangyu Zheng ◽  
Rongjie Yu
Author(s):  
Ángel Correa ◽  
Paola Cappucci ◽  
Anna C. Nobre ◽  
Juan Lupiáñez

Would it be helpful to inform a driver about when a conflicting traffic situation is going to occur? We tested whether temporal orienting of attention could enhance executive control to select among conflicting stimuli and responses. Temporal orienting was induced by presenting explicit cues predicting the most probable interval for target onset, which could be short (400 ms) or long (1,300 ms). Executive control was measured both by flanker and Simon tasks involving conflict between incompatible responses and by the spatial Stroop task involving conflict between perceptual stimulus features. The results showed that temporal orienting facilitated the resolution of perceptual conflict by reducing the spatial Stroop effect, whereas it interfered with the resolution of response conflict by increasing flanker and Simon effects. Such opposite effects suggest that temporal orienting of attention modulates executive control through dissociable mechanisms, depending on whether the competition between conflicting representations is located at perceptual or response levels.


Atmosphere ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 104 ◽  
Author(s):  
Qiang Liu ◽  
Hongmao Yang ◽  
Min Liu ◽  
Rui Sun ◽  
Junhai Zhang

Cities located in the transitional zone between Taihang Mountains and North China plain run high flood risk in recent years, especially urban waterlogging risk. In this paper, we take Shijiazhuang, which is located in this transitional zone, as the study area and proposed a new flood risk assessment model for this specific geographical environment. Flood risk assessment indicator factors are established by using the digital elevation model (DEM), along with land cover, economic, population, and precipitation data. A min-max normalization method is used to normalize the indices. An analytic hierarchy process (AHP) method is used to determine the weight of each normalized index and the geographic information system (GIS) spatial analysis tool is adopted for calculating the risk map of flood disaster in Shijiazhuang. This risk map is consistent with the reports released by Hebei Provincial Water Conservancy Bureau and can provide reference for flood risk management.


2016 ◽  
Vol 23 (6) ◽  
pp. taw062 ◽  
Author(s):  
Emily S. Jentes ◽  
R. Ryan Lash ◽  
Michael A. Johansson ◽  
Tyler M. Sharp ◽  
Ronnie Henry ◽  
...  

2010 ◽  
Vol 53 (10) ◽  
pp. 2739-2747 ◽  
Author(s):  
YanYan Chu ◽  
Hui Zhang ◽  
ShiFei Shen ◽  
Rui Yang ◽  
LiFeng Qiao
Keyword(s):  
Risk Map ◽  

1981 ◽  
Vol 52 (2) ◽  
pp. 515-522 ◽  
Author(s):  
Amos S. Cohen

Car drivers' eye fixations were registered while driving a car on the road or when in the viewing a slide which showed the same traffic situation. Even when the subjects of the second group were instructed to observe the slide presented as if they were driving there, they fixated their eyes on well-defined targets with quite different frequencies than those motorists who actually drove the car on the road. Furthermore, prolonged fixation times were observed in the laboratory as compared to the road-driving condition. The magnitude of the obtained differences was rather great. The results suggest that the subjects on the road fixated more task-oriented targets and also picked up more information per time unit than their counterparts in the laboratory. The results are discussed in relation to the experimental design.


Author(s):  
Stephen T. Muench ◽  
Amit Armstrong ◽  
Brian Allen

The Federal Lands Highway (FLH) Program is a $1 billion annual program administered by FHWA. The program provides financial resources and technical assistance for public roads that give access to a variety of federal and Indian lands, including those administered by the National Park Service, U.S. Department of Agriculture Forest Service, U.S. Fish and Wildlife Service, and Bureau of Indian Affairs. Much of this work is dedicated to the design and construction of roadway projects, which must incorporate the strategic sustainability values of these agencies and FHWA. This paper identifies key FLH sustainability values and uses the Greenroads rating system taxonomy and Greenroads scores on seven case study projects to draw conclusions about FLH project-level sustainability practices. Findings are that (a) projects scored in the 21- to 26-point range and none achieved certification, (b) 14 identifiable sustainability practices are well integrated into project delivery, (c) 12 practices can be considered potential areas of improvement for little additional effort, and (d) 15 practices could be considered priorities based on FHWA and partner agency values.


2012 ◽  
Vol 482-484 ◽  
pp. 2519-2523
Author(s):  
Teng Fei ◽  
Li Yi Zhang ◽  
Yun Shan Sun ◽  
Hong Wei Ren

Emergency logistics system contains information on material reserves, emergency command and emergency distribution. In this paper, the aspect of emergency distribution only is analyzed in microscopic, mathematical model of emergency logistics distribution has been established in considering the traffic situation and shortage degree. On the aspect of model solution, improved ant colony algorithm, which can enhance the selectivity of finding the best solution in emergency logistics distribution routing, is used in solving the model.


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