A crest vertical curve is to be designed to join a +4% grade…

A crest vertical curve is to be designed to join a +4% grade with a -1% grade at a section of a two-lane highway. Determine the minimum length of the curve if the design speed of the highway is 70 mph, S < L, and a perception reaction time of 2.5 sec.  The deceleration rate for braking is 11.2 ft/sec2. (Please show all work as best as possible and type out anything that you would like to clearly articulate)

Describe and explain a) specific benefits in using Building…

Describe and explain a) specific benefits in using Building Information Modeling  (BIM) for lean construction projects. a) 2 benefits In the design phase   b) 2 benefits in the construction phase. c) Describe the legal and technical challenges that may arise on construction projects. How can they be avoided or resolved? .