PROTECTING THE ENDANGERED BIRDCE-5332 Term ProjectSpring 200Pre!ente" #$R%#in"r% B%nep%&iS%!%n D%ne!'(%rI)te*'%r Ron$Hem%nt' S'i(%OVERVIEWProject descriptionProposed SolutionObjectivesDesign approachRadius calculationAttainment of superelevationLayout or the curveConclusionINTRODUCTIONRecently a habitat of an endangered bird species has been discovered near an existing roaday!he roaday is a hori"ontal curveCausing noise pollution to the habitat#$P!%PCINTRODUCTIONProposal to meet this environmental constraintRelocate the curve %&'ft aay from its original location #$P!%&' ft#$P(% ) **+''P!%PCOriginal Curve R) ,,& ftINTRODUCTIONOriginal Design Criteria-Radius of ,,&ftSuperelevation of ,./ormal0Cron Slope of %.Design Speed of $' mph&0lanes1 each being %& feet ideA ne local roaday is being planned hich the ne curve must cross at the point here the local road has a longitudinal grade of 2.OBJECTIVESRelocate %&'ft aay from the existing curve /ot altering the design speed of $' mph3eeping the PC point fixed4ind the location here 2. grade planned road is going to cross the re0aligned road5eet the AAS6!O 7reen 8oo9 Re:uirementsDESIGN PROCEDURECalculation of the radius of the ne cur!e#$#$P( ) **+''P!%P!PCOld !angent Length/e

!angent Length%&' ftOriginal Curve R) ,,& ft/e CurveR) ;*$ ftOld !angentlength ) #