What are the variations in the values of radial force P exerted on a vehicle on a (). curve of radius r as in transition curve, length LT transition curve, length LT circular arc straight T2 straight r = R P = P = Figure 3 transition curve, length LT transition curve, length LT circular arc straight T2 straight P r = R P = P = Figure 3. CR (). activity? Why is good reconnaissance prior to road design and survey a recommended EV (). carriageway is to be constructed with superelevation of 2.7m and design speed 85 kph has a radius of 700 m. What is the width of the carriageway? CR The central circular arc of a composite curve on a section of road of