1989hf
Civil/Environmental
- Oct 29, 2014
- 1
Hi,
I'm new to this forum and quite new to highway design too. My question is regarding hatched road tapers and how to work them out. For instance, I have a 3m island and need hatched taper coming out of this on a 30mph road. I've found in DMRB that the taper should be 1:40 so does that mean for every 40ms down, you go in one meter and then join the line from the origin to this point? If so, the lines will not meet at 40m so do you extend to a point where they do? Or should I consider it 1.5:60 as my island is 3m wide? Any help would be much appreciated.
I'm new to this forum and quite new to highway design too. My question is regarding hatched road tapers and how to work them out. For instance, I have a 3m island and need hatched taper coming out of this on a 30mph road. I've found in DMRB that the taper should be 1:40 so does that mean for every 40ms down, you go in one meter and then join the line from the origin to this point? If so, the lines will not meet at 40m so do you extend to a point where they do? Or should I consider it 1.5:60 as my island is 3m wide? Any help would be much appreciated.