Forging new generations of engineers

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# Forging new generations of engineers - PowerPoint PPT Presentation

Forging new generations of engineers. Road Design. A Process for Road Layout. Road Design. Check the existing Topographical data. Road Design. Decide on the type of road and characteristics Freeway Arterial Collector Feeder. Road Design.

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Presentation Transcript

• Check the existing Topographical data

• Decide on the type of road and characteristics
• Freeway
• Arterial
• Collector
• Feeder

Setting up a chart for survey data and control points

Transit Line

Setting up the 90° Intersection

• Plan the Start of the Curve (PC)

Layout the Curve

Curve information

Knowns

R=300’

∆=33°34’

Now Calculate the Unknowns about the curve.

To find the distance from P.C. to P.T. use the formula

Convert 33°34’ to degrees

34’/60’=.567

33°34’ =33.567°

Back to the Formula

L=175.756’

Finding the angle of the 100’ chord (D)

Bisect the angle to create a Right Triangle

Inverse SinX=9.594°

D=2(9.594°)

D=19.1881°

D=19°11’

Continue laying out the road and points