(32SII) Stopping Sight Distance

04102014, 12:32 PM
(This post was last modified: 06152017 01:34 PM by Gene.)
Post: #1




(32SII) Stopping Sight Distance
Input:
Y: speed of vehicle or design speed (mi/hr) X: grade of the road (i.e. for 1% grade enter as 1) Output: X: Stopping Sight Distance (in feet) Formula used: SSD = 55/15 * V + 1.075*V^2/(11+.32*G) Assumptions: * Total reaction time is 2.5 seconds. The deceleration rate of the vehicle is 11 ft/s^2. Both values are recommended by the AASHTO (American Association of State Highway and Transportation Officials). Program: S01 LBL S S02 0.32 S03 * S04 11.2 S05 + S06 1/x S07 1.075 S08 * S09 x<>y S10 ENTER S11 Rdown S12 x^2 S13 * S14 Rup S15 55 S16 * S17 15 S18 ÷ S19 + S20 RTN Size: 54.0 Checksum: 2343 Examples: Input: Y: 65 (V) X: 2 (G) Result (Fix 4): 621.9376 ft Input: Y: 35 (V) X: 4 (G) Result: 261.0828 Reference: Source: Goswami, Indramil Ph.D. P.E. "All In One Civil Engineering PE Breadth and Depth Exam Guide" 2nd Edition. McGraw Hill: 2012 

04102014, 03:21 PM
Post: #2




RE: HP 32SII: Stopping Sight Distance
Y: 1
G: 34 Result: Runaway! :) 

04142014, 07:35 PM
Post: #3




RE: HP 32SII: Stopping Sight Distance  
04142014, 09:08 PM
Post: #4




RE: HP 32SII: Stopping Sight Distance
(04142014 07:35 PM)Eddie W. Shore Wrote:(04102014 03:21 PM)everettr Wrote: Y: 1 Or add it to a stage of the Tour de Francegoing uphill of course. Only 81 days and counting until Le Grand Départ. Mark Hardman Ceci n'est pas une signature. 

06022014, 12:26 AM
Post: #5




RE: HP 32SII: Stopping Sight Distance
50G:
'SHSSD' %%HP: T(3)A(D)F(.); \<< \> Y X \<< Y "SPEED" \>TAG X "GRADE" \>TAG X .32 * 11.2 + INV 1.075 * Y SQ * Y 55. * 15. / + "SSD" \>TAG \>> \>> Thanks ~~~~8< Art >8~~~~ PS: Please post more 50G stuff :) 

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