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ID:39505308
大小:45.75 KB
页数:4页
时间:2019-07-04
《Economic Evaluation of Advanced Winter Highway Maintenance Strategies》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、37SmithandZogg1998TRANSPORTATIONCONFERENCEPROCEEDINGSEconomicEvaluationofAdvancedWinterHighwayMaintenanceStrategiesDUANEE.SMITHANDJEFFREYA.ZOGGHighwayagenciesfacedemandstomaintainorimprovetheexistingandeffectivedeicing,however,sometimesresultsinindiscrimi-winterroadwaylevelofservice.Thebene
2、fitsofadvancedwinterhigh-natesalting.However,newdevelopmentsinwintermaintenancewaymaintenancestrategiesnowbecomemoreattractive.Thispaperincludingdeicerapplicationtechniques(e.g.saltprewetting),plow-examinesthepotentialbenefitsofapplyingadvancedwinterhighwayingandspreadingequipment,andweathe
3、randroadwaymonitor-maintenancestrategies.TheVermontAgencyofTransportationcon-ducted“SmartSalting,”astudyofde-icingsalteffectivenessatdiffer-ing(e.g.,pavementsensors)aremakingtheseprioritieslesscon-entpavementtemperatures.Arecommendedsaltapplicationcurvefusing”(1).wasdeveloped.Asthepavementt
4、emperaturegoesdown,ittakesmorePavementtemperatureisthecontrollingiteminthetreatmentofsalttomelttheice.IowaDOTsnowremovalandmaterialcostswerehighwaysduringwinterstorms(2).Usingthisfact,pavementtem-usedtocalculatethetheoreticaldifferentialcostusingtheVermontperaturedataprovidedbyadvancedtechn
5、ologiesmaybeusedtoStudy’srecommendationsandcomparingtoactualpractice.AsavingcustomizetheratesofmaterialapplicationandthetypeofmaterialinmaterialsexistswhentheVermontStudymaterialapplicationratecurveisusedforpavementtemperaturesabove25°F.IowaDOTweatherutilizedtomatchroadconditions,andthuspro
6、videtreatmentforandpavementforecastverificationreportswerereviewed.Thereportsonlythosesectionsoftheroadwhichrequireit.Thispaperwillconsistedofscenario-basedquestioning,andfocusedoncostsavingsexaminetwomethodstousepavementtemperatureinadvancedandlosses.Thereportcalculationsdidrevealalossfort
7、he1996-1997winterhighwaymaintenancestrategies—thefirstmethodinvolveswinterseason,butpreliminaryfiguresforthe1997-1998wintersea-observationofpavementtemperaturefromstationarysensorsandsonareanticipatingsavings.Advancedwintermaintenancestrategiesmovingvehi
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