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Homework #5 solution

# Homework #5 solution - Problem 3.4 Determine ifthe eunre in...

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Unformatted text preview: Problem 3.4 Determine ifthe eunre retridessuffieientste in si ht distance. H1 := 35 H2 := 2.1] [assumed] A ;= |1.2r1+ reel A = 2.23 s=sse [53nd h] s ;= 5m {Table 3.1] calculate required EUWE length fer design speed. eempere te eetuel length AssumeSsL 2 2001 1H1+ 1H : IIEEI- 314] L:=2-S—+ L=1EI3.3?? ft Aetuel L is greater then calculated minimum L. EUWE is adequately designed prehlem can he dene using K-irelues: SSE] := 531] [Table 3.1] A: |1.2rJ+1.ne| s=2es L := EDD selve fer K at actual euwe. eempere te design K fer |3E| mifh K := — K: 263.153 11 [EIZ|. 31?] frem table 3.2. H-uelue besed en SSE] fer EU mifh is 15111 since 253 ft :=~ 15111. euwe is edegueteljrr designed Determine the height at the driver's eye. L := 1200 H2 := 2 K := 84 calculate A of tune A := L A = 14.2% K solve for H1. ueing design SSE] fer EU mif'h S := STU e<L A52 _ zuulﬂ+ JH__:2 H1: 3.9 11 L Problem 3.? [given] [Table 3.2] [EE|. 3.13] Iqu. 3.13] Preblem 3.8 Assess the edeguee}: ef this existing eunre. x := 352 Yx := 3 L := EDD [given] eelve fer A ueing knewn eifeet EDDY -L' A H: .x2 A := X Ing. 3?] EDD-L 2 x A = 3.13Mr Selve fer K ef existing eur-re L . H := E H = 205.51]? [54. 3.10] Frem Table 3.2. Kfer EU is 151. Since 20? :> 151. eur-re is adequate fer EU mi.-"h. prehlem een elee he dene ueing Eguetien 3.15 fer SSE] eelire fer A using knewn effeet Y - A x2 ’1' NHL Ing. 3?] A = 3.534 SSE] __ 5?“ [Table 3.1] Selire fer required minimum L. eeeuming SSE] «=: L A3302 Lm := 2153 Lm = 553.25 ft [EC]. 3.15] Since EDD ft :- 553 ft. curve is adequate fer 5U mifh ...
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