Define stopping site distance. Calculate the SSD required to avoid head on collision of two cars approaching from opposite direction at 65 and 55 kmph.

Welcome back.

and 3 others joined a min ago.

7.4kviews

written 7.1 years ago by

teamques10 ★ 70k

modified 3.8 years ago by

pedsangini276 • 4.8k

Assume a reaction time of 2.5 sec, coefficient of friction as 0.6 and brake efficiency of 50% in either case.

Mumbai university > civil engineering > sem 5 > Transport Engineering 1

transportation engineering

ADD COMMENT EDIT

1 Answer

615views

written 7.1 years ago by

teamques10 ★ 70k

Given

$V_1 = 65\hspace{0.05cm} kmph\hspace{1.5cm}V_2 = 55\hspace{0.05cm}kmph\\ \hspace{0.25cm} = 18.05\hspace{0.05cm}m/s\hspace{2cm} = 15.28\hspace{0.05cm}m/s\\ \\ t = \textit{reaction time} = 2.5\hspace{0.05cm}sec\\ f = \textit{coefficient of friction} = 0.6\\ \textit{Brake efficiency} = 50\% \hspace{0.05cm}of\hspace{0.05cm}0.6\\ f = \frac{50}{100}\times0.6 = 0.3$

Stopping Sight Distance

$SSD = (\textit{Log Distance + Breaking Distance})_1 + (\textit{Lag Distance + …

Create a free account to keep reading this post.

and 5 others joined a min ago.

ADD COMMENT EDIT

Community

Content

Company