(Solved):   1 - Give a horizontal curve with a radius of \( 450 \mathrm{~m} \), delta angle \( 35^{\ci ...

 

1 - Give a horizontal curve with a radius of \( 450 \mathrm{~m} \), delta angle \( 35^{\circ} \) and the PI station of \( 15+20 \), compute the curve data and the station of PT. 2- A \( 6^{0} \) horizontal curve covers an angle \( 68^{\circ} \). Determine the radius, the length of the curve and the middle distance from the chord. (Metric units) 3- What super elevation rate would you recommend for a roadway with a design speed of 110 \( \mathrm{km} / \mathrm{hr} \) and the radius of curvature of \( 480 \mathrm{~m} \) ? Assume side friction is \( 0.12 \). 4- A road is being designed capable of allowing \( 110 \mathrm{~km} / \mathrm{hr} \) vehicle speed. The super elevation is \( 0.06 \) and the coefficient of side friction is \( 0.11 \). Determine minimum radius of curve. 5- The mayor of Jazan wants to erect a large sign welcoming visitors as they enter the city. The road has four \( 12 \mathrm{ft} \) lanes with \( 4 \mathrm{ft} \) shoulder. It is also a horizontal curve radius of \( 1200 \mathrm{ft} \). The speed limit is \( 45 \mathrm{mph} \). How far should the sign be placed from the highway to avoid potential stopping sight distance issues?