نتایج جستجو برای: contrast of traffic lane lines color

تعداد نتایج: 21207543  

2010
Luca Mantecchini

The main objective of this paper is to develop and test an approach for the spatio-temporal analysis of traffic flow variation on two lane highways. Traffic count devices located in several points of two lane highway links give the aggregate time series of data used in this approach, which is based on the Principal Components Analysis (PCA). The statistical analysis of main sources of temporal ...

2014
S. Rajeswaran S. Rajasekaran

Traffic flow micro simulations are popular for the planning of transport problems due to their temporal and spatial resolution. Cellular automata (CA) model are mathematical idealizations of physical systems in which space and time are discrete, and physical quantities take on a finite set of discrete values .In this paper , we are exploring the usefulness of CA to traffic flow modeling. A CA m...

2014
M. P. Bheema Rao

Traffic congestion has been a major problem on roads around the world. In addition, there is increase in volume of traffic vehicle density at a steady rate. Thus traffic on major roads has to be controlled to keep the traffic flowing at an acceptable rate. Several schemes for replacing the predominantly used Round Robin (RR) scheme for reducing congestion at traffic junctions have been proposed...

2009
Xin-Gang Li Bin Jia Rui Jiang

In this paper, the lane-changing time is considered in the cellular automata models for traffic flow. The lower the velocity of a vehicle, the longer the lane-changing time. The simulations are carried out in the two-lane system and the on-ramp system. When the lane-changing time is taken into account, the maximum flux per lane is reduced in the twolane system compared with the original two-lan...

2010
MATTHEW A. TURNER Jan Brueckner Victor Couture Edward Glaeser Steve Kohlhagen Andreas Kopp David Levinson

We investigate the effect of lane kilometers of roads on vehicle-kilometers traveled (VKT) in US cities. VKT increases proportionately to roadway lane kilometers for interstate highways and probably slightly less rapidly for other types of roads. The sources for this extra VKT are increases in driving by current residents, increases in commercial traffic, and migration. Increasing lane kilomete...

Journal: :INFRASTRUCTURE PLANNING REVIEW 1984

Journal: :iranian red crescent medical journal 0
mohammad ghasemi health research center, baqiyatallah university of medical sciences, tehran, ir iran seyed hosein hoseini yazdi contact lens and visual optics laboratory, school of optometry and vision science, queensland university of technology, brisbane, australia; contact lens and visual optics laboratory, school of optometry and vision science, queensland university of technology, brisbane, australia. tel: +61-731385716, fax: +61-731385880 javad heravian department of optometry, paramedical faculty, mashhad university of medical sciences, mashhad, ir iran ebrahim jafarzadehpur contact lens and visual optics laboratory, school of optometry and vision science, queensland university of technology, brisbane, australia maryam rezaee trauma research center, baqiyatallah university of medical sciences, tehran, ir iran

results mean age was 41.6 ± 9.2 for the military truck drivers and 43.4 ± 10.9 for commercial truck drivers (p > 0.05). no significant difference between military and commercial drivers was found in terms of driving experience, number of mvcs, binocular va, frequency of color vision defects and cs scores. in contrast, the last ocular examination was significantly earlier in military drivers tha...

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