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TTE4804 Quiz _2 Solutions

TTE4804 Quiz _2 Solutions - QUIZ 2 so LUT JO f\JS PROBLEM.l...

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Unformatted text preview: QUIZ #: 2 so LUT JO f\JS PROBLEM.l Speeddistribution on a section of a rural two-lane highway shows that the average speed is 47.5 mph and the ss" percentile speed is 53.8 mph. A consulting engineer wishes to design a roadway in the neighborhood that is expected to have similar geometric and driving characteristics. The roadway is expected to have a +4 percent grade northbound and-4 percent gradesouthbound. (a) Determine what should be the design speed of this roadway Choose... 0-- sf&.~ c\o.se.. +u ~~ &s1"\; ~V--CJl.K\~ \~ .s;f.u-~-- , (b) Determine the required stopping sight distance (You may use AASHTO Green Book tables or the stopping sight distanceformula, . J '" J 1tV ( \hoe. \,.LJOTSt- - case: .sc~Y1 o...r-i I-t '£"toff'i r1.Ct t'V' ~Vl ~r~ (L I lW 6 J v'Z-- '..ss "2.- 528 $S,D:-\.4-1Vt+ r: _-)~ 114-7)(sr-)(~·S-t (( ~ ~ 30\...0'~-tq 30 e-ss- Q. <:l 4,) A \te-rl'\~~ (.\';1 , I .s,~ j) = !=)( 'Yil ~bl+ 3-2 (V:::: S-~ MP-~ j /Dr';- 4 %) ~ 531 (c) What passing sight distanceshould be provided?What passing sight distanceshould be provided?...
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TTE4804 Quiz _2 Solutions - QUIZ 2 so LUT JO f\JS PROBLEM.l...

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