My first answer was wrong. I used 440 instead 1/2.
Atan a/b = Atan 60/220 = 15.2551 this 1/2 delta
Delta = 2 x 15.2551
R= y/(1-cos delta) = 60/(1-cos 30.5102)=433.33
In my notes these are some equations used for steps for calculating Signal Timing... L= total lost time in all phases ; l = total lost time in each phase; C = optimum cycle length; g = effective green time to each phase based on its critical v/s; G = Green interval; Y = yellow; R = Red...
Self-studying and using a online PE review course thru ITRE. I have the CERM's, review course books (they cover all civil topics) and all the transportation reference material except one of the pavement books. My downfall is my education HS only. Been doing surveying and highway design for over...
Here is my results from April 2016 need some work on a few topics. I walked out kicking my self on 3 questions in the afternoon knowing i had answered them wrong. Any advise besides the Obvious STUDY STUDY and STUDY more.
I was not satisfied with my performances on the am or its depth. Now the pm was great, I was prepared and quessing I got 33+. I am right on the break point of 56 needed. May be taken again in April.
Civil Transportation also.... Morning was a nightmare but I shook it off and the afternoon was a breath of fresh air. Am 20-23 pm 30-33 plus the hell Mary answer on the remaining. Will be studying for April.