Recent content by riz

I took the Trans. in the afternoon, Construction in the morning was not bad, General, (I did take an online course for it, I would do the same without the course too). actually for morning session all you need is Civil Engineering Review Manual (base on the this exam) Another tip get (NCEES...

for previous quastion there was a unit convertion mistake 2- Distance between Tangent = 3sec / 3600 sec per hour x V Dist = 0.0008 V (v is mph) the right calc. for this step is (t=1.47 t t v=( 1.47 )( 3 sec )v=4.41v ) I just got this from a friend , copy paste it for you hope is not too...

oops actually the result is 46 mph I believe I did extra step, this 1 - find R = V^2/15*(0.06+0.06) R = 0.555 V^2 (v is in mph) 2- Distance between Tangent = 3sec / 3600 sec per hour x V Dist = 0.0008 V (v is mph) 3- T1 = R tan 30/2 = 0.2679 x0.555 V^2 = 0.148 V^2 4-...

on this quastion ""Two reverse-horizontal curves have external angles Δ1 = 30° and Δ2 = 60°. The distance between PI and PI is 1000 ft. The maximum allowable side friction factor is 0.06, and the maximum super-elevation rate is 0.06. What is most nearly the maximum velocity (design speed) that...

here is my clue, this quastion is very straight forward, the solution is very confuse. I did sketch the two cross sections, convert the unit for fill to ft (even didn't mention the unit, but roadway cross section you will not have 22 ft, 22" is reasonable ) do basic calc. for area sta 10+00...

finally I got some info about the subject for trip distribution : gravity model is been used more often, which is base on Newton low Interaction between two centers = {(balancing factor) x (Attraction Population) x (Production population)} divided by square of distance between (Attr. &amp...

here is the main equation time (offset) = Block length / speed (fps) always convert the mph to fps , since the length usually is in feet

I been told there is a trip distribution and generation quastion in the afternoon any has any equation , hand out or example for (origin destination) type quastion any idea what we need for trip generation quastion ? do we need trip generation book ? ? I did some research , no luck in finding...

I heard it might be a question regarding trip assignment , and trip distribution any one has hand out, or an idea about any trip distribution formula or equation. and for trip generation do we have to have the book for it , and if not , is the formula is given or not appreciate any feed back Riz