Assessing The Impact Of Congestion During A Multi-County Evacuation

Description: Please refer to the section BELOW (and NOT ABOVE) this line for the product details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Title:Assessing The Impact Of Congestion During A Multi-County EvacuationISBN13:9781502386960ISBN10:1502386968Author:Naval Postgraduate School (Author)Description:(This is a RePrint) - This Book Introduces An Integer Linear Program Called The Minimum Cost Flow With Congestion Assignment (Mcfca) Model Mcf-Ca Is A Multi-Period Evacuation Model That Uses A Novel Approach Called Congestion Assignment To Analyze Clearing Times During Mass Evacuations Congestion Assignment Discretizes The Nonlinear Relationship Between The Number Of Vehicles On A Road Segment And The Maximum Speed At Which Those Vehicles Can Travel Mcf-Ca Selects Among Three Congestion Levels (None, Moderate, And High) For Each Road Segment In Each Time Epoch Depending On The Congestion Level Selected, Mcf-Ca Limits The Number Of Vehicles That Are Able To Traverse The Road Segment And Uses Ak Elik's Time-Dependent Speed-Flow Function (Ak Elik 2003) To Determine The Average Travel Speed Of The Vehicles For That Time Period As A Result, We Are Able To Determine Approximate Evacuation Clearing Times Under Nonlinear Congestion Effects By Solving An Integer Linear Program We Limit Residents' Prior Knowledge Of Traffic Conditions By Implementing Mcf-Ca In A Rolling Horizon Fashion And Book The Impact Of This Limited Knowledge On Evacuation Patterns We Also Model The Impact Of Sub-Optimal Routing Decisions On The Part Of Residents By Artificially Shifting Residents Toward Their Own Shortest Paths Rather Than A Socially Optimal Route Mass Evacuation Can More Than Double The Clearing Times Of Individual County Evacuations However, During Both County And Mass Evacuations, Resident Routing Choices Significantly Impact Clearing Times As More Residents Choose Suboptimal Routes, Clearing Times Are Prolonged Lastly, We Find That More Than 50% Of Residents Will Experience Congestion At Some Point During The Evacuation Horizon However, Allowing Some Congestion Improves Evacuation Clearing Times By 20-36% Over Not Congesting Although Congestion Decreases Vehicle Travel Speed By 70-80%, Over 50% More Residents Are Able To Start Or Continue Evacuating During Each Time Epoch Binding:Paperback, PaperbackPublisher:Createspace Independent Publishing PlatformPublication Date:2014-09-16Weight:0.41 lbsDimensions:0.15'' H x 11'' L x 8.5'' WNumber of Pages:70Language:English

Price: 14.65 USD

Location: USA

End Time: 2024-12-28T11:16:58.000Z

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