We have encountered a small problem,
Is the necessity for ballast use is to drain the water, because if so, this mean we could use finer grade and compacted rock at a grade crossing because water just flow ON the road and never gets into the ballast at this section...
Tell me if I'm wrong
When you have an horizontal curve composed of this : tangent-chlotoid-curve-chlotoid-tangent on an horizontal plane, why does the AREMA "strongly suggest" not to put a vertical curve in the chlotoid portion of the horizontal curve?
Hello everyone,
I know there isn't many people here but i'm trying anyway.
I'm actually working on a project that need us to calculate the clearance of a switch.
What will influence the distance between the rail and the end of the switch tie?
What are the needs to have longer or shorter...
Hello,
we are currently designing a mainline for an american company.
On some horizontal curves we have to include spirals.
In the AREMA Practical guide, there is a mention saying that it is strongly recommended not to put a vertical curve in the spiral element of an alignment if we are using...
I have another good one for you.
Recently I started a project in metric system.
The client wanted all drawings in imperial system.
So I used the tools in Railtrack to convert all my alignments.
It worked perfectly, even the turnouts were scaled correctly...
correctly? well I lost the...
I will probably need to start a .xin from scratch.
I tried to create an empty .txt and rename it to .xin but then, symbology customixation is locked...
Hi,
New to forum.
I know a little about the subject and I would definitely like to join to your conversation.
The only thing Is that I'm french and dpn't really understand all the english terms your using. Can you help me?
For what I understand, BA got a big point with his drawing, the only...
