We have looked into the same problem. Several of the cities I work with have elected to use the cast in tiles. The stamp was tried but the texture was not very durable.
The glues ons were also tried but, unless the installation conditions are optimal, the glue lets go during winter snow and ice...
The solution isn't quite that easy. I recommend you use the Highway Capacity Manual and the software that emulates the process.
Deciding when to add lanes or when to convert from four lanes to three with a continuous left turn lane is subjective most of the time. The region in which you work...
Kaizer,
I second the no caps comment; they make your note really hard to understand.
Look for a copy of HY-8 software from either McTrans or PC-Trans. Both have a manual sponsored by FHWA that is very comprehensive. You will be learning a lot and should have the time to do so or your work will...
We recently installed dual lefts at busy intersections in a river town. The back-up into and consequent lane closure of the adjacent through lane was eliminated.
I do not see any shy distance or speed reduction from adjacent turning vehicles. I do note that many prefer the outside lane rather...
