Thanks million Hoaokapohaku;
I do agree on the type of roads and the ratio relation. I am actually doing the whole study on flat land , 15 degrees is the highest elevation. I even tried to find data on total installed in the US in order to get a common ratio although I know the accuracy will...
hello,
I am trying to gather statistics on general road infrastructre parts. One key stats I am looking for is the ratio of the steel guardrail used in roads per road length (m of guardrail / road length). I am trying to do a study for my class to show the size of steel used for road guardrail...
