Call this point Edge Base and dont assign it to a material layer)įrom the ROW create an instruction that comes towards the CL by 0.,001 and VD of 0 (to set a direction for next shape). Lets say we try to keep the 2m ditch and we will vary the inner slope from 1:6 to 1:3 first and only when we are at 1:3 do we vary the width of the ditch from 2 to 0 and after the inner slope is at 1:3 and the Ditch is at 0 (you dont define what happens then - but let's assume for now that that scenario never occurs)įirst step for me would be to create a set of instructions that compute back from the ROW line to the inside of DItchįrom the Edge (by Barrier), create an instruction that is a 1.4m Vertical Drop (the drop of the inner slope). If we assume that the following is what you need to do Hope that this may get you going before mid week this week Now that you have the Test Shot and the ROW line in the Template you can test the Horizontal Distance between nodes - use Test Shot - ROW and if that distance is >0 and -1000 then it passes (Test Shot is inside ROW) (on the Right Side) (Note that the signs reverse on the left side for the same test. Then once you have a 3D line you can add it as a reference line in the Corridor Model itself (Not the Template - the model in the project Explorer. This will require that your ROW line is available as a Node in the template - if you have a 2D Line for that you can Change its Elevation to match OG Elevation using the Cange Elevation command. If the Condition fails you tell it to tie at 2.5:1 or whatever your steeper slope should be - or just tie from the toe of slope to the ROW line if that is what you want to happen.
If the Condition passes then you tell it to create a Connection between the Toe of the cut slope and the Test point Now you have the Test Shot, you can test to see if it is inside the ROW line or not (or inside the max offset for the ROW line using an If Condition.
Before putting in the Condition create an instruction that is not assigned to any material layer that has a slope of 3:1 Cut tying to OG. If you have a design Cut Slope that is at 3:1 but it has to land inside the ROW line and if it doesnt then you have to use a 2.5:1 or steeper slope - this is a perfect scenario to use the Conditional instruction. The key is to create the Condition using a "Test Shot" for example I will take a look at your file this week - I use Conditions for this type of thing regularly.
Yes this can be done with a slope table for each shape but looking for a faster entry method where LT and RT can be entered simultaneously. Many times there are slope variations left and right that are not a mathematical super or in other situations such as match existing, slope variations through an intersection or into/out of a bridge that carries a constant slope where a table is the only solution. and the same for Station/LT Offset/RT Offset.Īt least for the travel portion maybe there could be a table in the superelevation tab of the alignment that is simply station/ slope LT & RT. Maybe a toggle to say a template shape is LT and/or RT with options for the tie node and offset/slope for each side? Then the table would be Station/LT Slope/RT Slope. Just wondering if there is a faster way to enter slopes from cross sections tp the template shapes? I am aware of the import tables from excel but that also requires time to create all those tables. For a road that has varying slopes for EP, ES and say a Shoulder LT and RT, you end up running through the cross sections twice each shape LT and RT (6 times for a two lane road).
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