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Analysis of moose-vehicle collisions countermeasures in northern climates

Transportation Safety and Environment 2021年第3期3卷 280-290页

作者： osama abaza Colleen CMoran Department of Civil Engineering University of Alaska Anchorage3211 Providence DriveEIB 301LAnchorageAK 99508USA University of Alaska Anchorage 3211 Providence DriveEIB 301LAnchorageAK 99508USA

This research investigates the reliability of two measures intended to reduce moose-vehicle collisions(MVCs):continuous lighting and clearing/grubbing of roadway *** analyses and a combined regression analysis were conducted to measure the effects of several combinations of variables on MVC rates,including clearing and grubbing,continuous lighting,clearing without grubbing,moose population,precipitation,snowfall,and maximum snow *** corridor improvement projects were analyzed based on the variables *** previous studies,it has been hypothesized that MVC rates are influenced by environmental conditions such as snowfall and *** Alaska Department of Transportation and Public Facilities(DOT&PF)has performed many studies on MVCs along several *** corridors showed a significant drop in the number of MVCs after the installation of continuous *** results show there is a consistent drop in MVCs after clearing and grubbing,with the exception of one *** combined clearing/grubbing and continuous lighting projects also resulted in a consistent drop in *** projects with clearing and grubbing as a component had varying trends in MVCs,which may indicate that DOT&PF Maintenance and Operations performed clearing of re-vegetated areas,or that older growth is less of an attractant for moose.

关键词： continuous lighting clearing grubbing moose-vehicle collisions countermeasures cold regions wildlife

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维普期刊数据库

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Physical and economic impacts of studded tyre use on pavement structures in cold climates

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Transportation Safety and Environment 2021年第4期3卷 100-114页

作者： osama A.abaza Mahmoud Arafat Muhammad Saif Uddin Department of Civil Engineering University of Alaska Anchorage2900 Spirit DriveEIB 301 LAnchorageAlaska 99508USA Department of Civil and Environmental Engineering Florida International University10555 West Flagler StreetEC 3730MiamiFL 33174USA

In cold regions like Alaska of USA,Canada and the northern parts of Europe,using studded tyres is common among the public when driving in icy and snowy ***,studded tyres cause extensive wear to asphalt pavement,reducing pavement *** study addresses the physical and economic impacts of winter studded tyres on the roadway system to better inform decision makers as they develop alternative solutions and future *** approach is applied in a case study from a sample of Alaska statewide road *** were employed to examine the extent of the use of studded tyres and cost-effective alternatives.A pavement life-cycle cost review was established considering several variables to discover a realistic cost of roadway resurfacing and *** rates due to studded tyres and rut rates due to wheel loads were found for different highway *** results indicate higher average wear rates due to studded passenger vehicles on freeways than average rut rates due to heavy wheel *** results also indicate lower average wear rates on arterial and collector *** estimates show that studded tyre use reduced asphalt surface life by about 7 years on the selected freeway sample in the case study,which is about 47%loss in pavement life based on the initial design life of 15 *** road classes experienced lower reductions in service ***,cost analysis was provided to reflect the impact of studded tyres on the state’s *** were suggested,which in turn may help other cold regions develop strategies on the use of new winter tyre technology.

关键词： wear rate pavement rutting studded tyre winter tyre technology economic analysis

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维普期刊数据库

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