Briefly explain how the vertical alignment of a newly planned urban road is affected by a...

   

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Briefly explain how the vertical alignment of a newly planned urban road is affected by a large utility line crossing the road reserve at a chainage. Also, it's not economically justifiable to relocate the line. (2) 3.2 A 2-lane, two-way rural road has a 4% gradient on an uphill section. The actual grade length is determined as 416 m. Consult the TRH17 and determine if climbing lanes will be required (Show your work on TRH17 Tables/Graphs if applicable). (3) 3.3 A crest curve was designed for 70 km/h. You have calculated the passing sight distance over the curve as 420 m. Consult the TRH17 and determine if overtaking should be prohibited on the curve section. 3.4 The sketch below shows the details of a parabolic curve used as part of the vertical alignment of a newly designed 2-lane, two-way rural road. The design speed is 100 km/h. The minimum required stopping sight distance (SSD) is 130 m Briefly explain how the vertical alignment of a newly planned urban road is affected by a large utility line crossing the road reserve at a chainage. Also, it's not economically justifiable to relocate the line. (2) 3.2 A 2-lane, two-way rural road has a 4% gradient on an uphill section. The actual grade length is determined as 416 m. Consult the TRH17 and determine if climbing lanes will be required (Show your work on TRH17 Tables/Graphs if applicable). (3) 3.3 A crest curve was designed for 70 km/h. You have calculated the passing sight distance over the curve as 420 m. Consult the TRH17 and determine if overtaking should be prohibited on the curve section. 3.4 The sketch below shows the details of a parabolic curve used as part of the vertical alignment of a newly designed 2-lane, two-way rural road. The design speed is 100 km/h. The minimum required stopping sight distance (SSD) is 130 m

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1 Vertical Alignment and Large Utility Line When a large utility line crosses the road reserve at a specific chainage distance along the road it can s... View the full answer