Recent content by TEEI

145' includes a 50' taper. It is a standard. 110' includes a 50' taper 50' storage is based on intersection analysis (95th percentile back of queue) This is an existing turn lane There is no posted speed limit, so we were requested to use 25 mph as posted speed. AADT=2000 VPD

Here is the situation. Posted Speed = 25 mph Design Speed = 25 mph + 5 mph = 30 mph Min. Deceleration length (based on local agency manual for 35 mph Design Speed)= 145' Queue Length = 50 feet Total right turn lane length = 145'+ 50' = 195' Available length = 110'due to constraints. Difference =...

I have 3 improvement alternatives for an intersection improvement project. Using the delay and crash history how do we determine the benefit cost ratio for these 3 alternatives?

I am currently working on traffic signal coordination project with 7 signalized intersections along a two-way roadway. Also, there are heavy left-turns along this corridor with exclusive pedestrian phases at 3 intersections. Can anybody explain me on how to achieve optimum green-band in both...

Can anybody explain me the relation between v/c ratio and Lane utilization Factor? I was told that for v/c ratios greater than 0.9, lane utilization factors can be changed to 1.0. Is this correct? If yes, can anybody give me the source and documentation for this? Thanks

Can anybody explain me the procedure to conduct an Origin and Destination Study in a Downtown district? Thanks

Generally 4% is considered to be steep. But I have seen 6%-8% in the most rare situations.

Can anybody tell me the difference between a controlled access facility and a limited access facility?

I have to do a capacity on a two-lane undivided roadway with a suicide(two-way left turn lane) lane in the middle. Do we have to account for this lane in the capacity analysis or do we have to just consider the roadway segment as a two-lane undivided? Please throw some light on this...

One good book i could think of is Transportation and Land Development 2nd Edition Author(s):Vergil G.Stover Frank J.Koepke This book is available through ITE website. Good Luck.. TEEI

I have a problem in justifying a Midblock-Crosswalk for a school building. MUTCD requires one to do a engineering study while putting in a midblock crosswalk. What actually does the engineering study means in this regard? Does anyone ever worked on in-road lighting? Does this require any...

Does anyone know if there is a good Traffic Signal Design(Signal Timing, Conduit installation, Detectors, controllers, mast arm installation) Course available anywhere in US

What is the importance of 85th Percentile Speed?