Any Highway Designers?? Help?

[Proffitt]

Right,

Long story short: In college we have been asked to design a by-pass of a certain town. We have come up with some routes BUT we need to find out what the minimum / maximum radius' roads have to be designed to!!

And for the life of me i can't find it any where...i have the Standard for Highway works on CD....soooo...what volume and what section would be great :y:

Or any Link?


Thanks

Tom

[Fezz_vtr]

aup mate im a highway designer, is it a single lane or duel-carriageway coz that obviously makes a difference minimum standard lane width is 3.65m but can vairy as the design standards are only guidance and you can do things differently. The depth of the road depends on loads of things like traffic levels, % HGV, what type of surface you want to use. give us a PM if u want to know anything and il do me best to help but could do with a few more specifics.

[Proffitt]

Well at the moment, we havent gone into designing anything as to depth and materials!!

We know the Traffic Count is 17,000 per day and we will be using a dual carriagway.


Isnt there just a table showing the length / road type / radius to see if it meets the standards?

[Fezz_vtr]

oh yea there will be wont be just one table thow will be several that you have to use, couldnt for the life of me tell you where it is in the standards, your best bet will be the design manual for roads and bridges, then most probably volume 7 : Pavement Design and Maintenence and volume 6 : Road Geometry

[Dizzy]

aup mate im a highway designer, is it a single lane or duel-carriageway coz that obviously makes a difference minimum standard lane width is 3.65m but can vairy as the design standards are only guidance and you can do things differently. The depth of the road depends on loads of things like traffic levels, % HGV, what type of surface you want to use. give us a PM if u want to know anything and il do me best to help but could do with a few more specifics.

For future reference. can you make sure all gulleys are kept off the wearing course, and that you never ever use chamfered kerbs as it will make my job so much easier :)

[saxo_tom1234]

love to do sommat like this who do u get on a cours like that?

[Fezz_vtr]

just go collage do a ONC in civil engineering then HNC (can go straight onto HNC if uve got a few Alevels) then onto uni if u want. wrong industry to go into at the moment to be honist coz of the resession every engineering consultancy is having massive job cuts, i work for Atkins (company responsible for the 2012 olympics) but its the same at A1+ and Ameys just no money about for big engineering projects any more.

[Proffitt]

Atkins.....oooo rivalries :p

I work for Capita :) Im just doing my last year of the HNC :y:

And agreed on the wrong industry to join atm!!

[Fezz_vtr]

For future reference. can you make sure all gulleys are kept off the wearing course, and that you never ever use chamfered kerbs as it will make my job so much easier :)

i know what u mean about the gulleys bloody stupid puttin them in the wearing course coz there always fooked in 2 years, but what u got against Chamfered kerbs lol. u involved in Planning out the carriageway surface by any chance? and guessin the kerbs mess with the leveling thingy that keeps the planner at constant depth

[Proffitt]

Found it - Volume 6, Section 1, Part 1. TD9/93

:)

[Dizzy]

i know what u mean about the gulleys bloody stupid puttin them in the wearing course coz there always fooked in 2 years, but what u got against Chamfered kerbs lol. u involved in Planning out the carriageway surface by any chance? and guessin the kerbs mess with the leveling thingy that keeps the planner at constant depth

Yeah mate i work for national road planing. Im a machine operator and the chamfered kerbs make the operators job 10 times harder trying to keep the side plate on the kerb to get the levels right! And the gulleys also slow us down because we have to pick the machine up over them and come back and trim them!

On the continent all the iron work is kept off the wearing course and the kerbs are all fixed depth flat front so its much easier to plane off, you should put that to your superiors!