By Dr. Shahin A. Mansour

From passpe.com Our textbooks are the one books that experience integrated colour tabs. those tabs will store helpful time in the course of the examination by way of telling you which of them part has the data it's worthwhile to be triumphant! cross into the attempt with the boldness you want to move! A Concise and entire precis of Code-Equations, Non-Code Equations, Tables, Charts, and Figures is equipped for a fast entry through the examination. present Transportation References: (1) 2011 GDHS-6, (2) GDPS-4, (3) 2011 RSD, (4) 2008 AASHTO MEPDG, (5) 2004 AASHTO Ped. amenities, (6) 2007 Asphalt Handbook-A1, (7) 2010 HCM, (8) 2009 MUTCD, (9) 2011 PCA, (10) 2012 FHWA-Culvert layout.

The Transportation intensity complement contains the road security guide (HSM) subject matters, the extra NCEES 2015 themes, one complete Civil Breadth (AM) perform examination with targeted ideas, and one complete Transportation intensity (PM) perform examination with special strategies.

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Extra resources for Transportation Module for Civil PE License

Example text

15 V 3 = RC (AASHTO Eq. com Transportation for Civil Engineering (PE) License © Dr. Shahin A. 15 V 3 RC (3-27) where: L = minimum length of spiral, ft; V = design speed, mph; R = curve radius, ft; C = rate of increase of lateral acceleration, ft/s3 Sample Problem A-14: Spiral Curve Given: Using 3 ft/s3 for the rate of increase of lateral acceleration. 38 ft (3-27) RC 1200 ´ 3 where: L = minimum length of spiral, ft; V = design speed, mph; R = curve radius, ft; C = rate of increase of lateral acceleration, ft/s3 Answer: (B)◄ Sample Problem A-15: Deflection Angle of a Spiral Curve Given: The coordinates of point P on a highway spiral relative to TS are 200 & 5 for x & y respectively.

S. C. S. T. S. S. C. C. S. C. S. T. com Transportation for Civil Engineering (PE) License © Dr. Shahin A. com Transportation for Civil PE License © Dr. S. C. 58)(100) = D Ls ´ K The ratio of the two radii is: R= (A-28) r Ls = R ls (A-29) The length of the spiral is: (200)(D s ) D The deflection angle is: Ls = (A-30) l s2 D s as = 2 ´ 3 Ls (A-31) The following equation, developed in 1909 by W. H. 15 V 3 = RC (AASHTO Eq. com Transportation for Civil Engineering (PE) License © Dr. Shahin A. 15 V 3 RC (3-27) where: L = minimum length of spiral, ft; V = design speed, mph; R = curve radius, ft; C = rate of increase of lateral acceleration, ft/s3 Sample Problem A-14: Spiral Curve Given: Using 3 ft/s3 for the rate of increase of lateral acceleration.

Com Transportation for Civil Engineering (PE) License © Dr. Shahin A. 7 Asymmetrical (Unsymmetrical) Vertical Curves: Asymmetrical vertical curves; also called unequal tangent vertical curves, are encountered in practice where certain limitations are exist as fixed tangent grades, vertical clearance or minimum cover. The vertex for unequal tangent curve is not in the middle between the BVC and EVC. An unequal tangent vertical curve is simply a pair of equal tangent curves, where the EVC of the first is the BVC of the second.