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FLOOD07468
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Last modified
1/25/2010 7:11:51 PM
Creation date
10/5/2006 3:00:44 AM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Community
State of Colorado
Stream Name
All
Basin
Statewide
Title
The Design of Encroachments on Floodplains Using Risk Analysis
Date
10/1/1980
Prepared For
USDOT
Prepared By
Federal Highway Administration
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />The running cost for passenger cars is $37/1000 vehicle mile at 55 mph and <br />$34.50/1000 vehicle mile at 35 mph. The adjustment factors for the cost of the <br />vehicles in the traffic distribution are 1.5 for commerical deliverv vehicles ~ <br />and 3.2 for semitrailers. ,..., <br /> <br />The running costs are: <br /> <br />RC = (Time of Detour)(ADTE)(Length)(Unit Cost) <br />24,000 <br /> <br />The Unit Cost for the normal route is: <br /> <br />UC = 37 [.7+1.5(.2)+3.2(.1)] <br /> <br />UC = $48.84/1000 vehicle miles, <br /> <br />and for the detour <br /> <br />UC = 34.50[.7+1.5(.2)+3.2(.1)] <br />UC = $45.54/1000 vehicle miles. <br /> <br />The running costs for the normal route are: <br />_ TdQ(6530)(5)(48.84) <br />RC(Q) - 24,000 = (TdQ)(66.4) $/hr <br /> <br />The running costs for the detour are: <br />_ TdQ(6530)(10.3)(45.54) _ <br />RC(Q) - 24,000 - (TdQ)(127.6) $/hr <br /> <br />e <br /> <br />The increased running costs due to the detour use are: <br /> <br />RCL(Q) = TdQ(127.6-66.4) = (TdQ)(61.2) $/hr <br /> <br />7.3.3 Time Losses <br /> <br />These losses are a function of ADTE, detour duration, traveled distance, <br />vehicle occupancy rate, design speed and the value of individuals time. <br />The occupancy rate and the value of time may be averages which apply to all <br />individuals in the classes of vehicles in the traffic distribution or <br />different values for each. <br /> <br />e <br /> <br />46 <br />
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