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I'm looking for any suggestions on how to make a sidewalk that follows the site contours
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Hiroshi Jacobs
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You could split the topographical surface into the sidewalk and change the material to concrete
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I've thought of that but I was looking for a way to have a 6" curb there as well.
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Hiroshi Jacobs
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When you make the sidewalk as a floor, try using the slope feature.
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I think this is an area where Revit needs to a little attention. The sweep around a floor is good, but a sweep around a topo would be great too. The only way I see to accomplish the curb is to split the topo for the sidewalk and curb. You can then force the surface change with spot elevations. - A pain. It would be really great to split the surface then sweep the profile along it. The sloping floor feature is not really a vaild solution on topography as calculating the slope, and cross slope would be a nightmare I wouldn't even want to start. The only way I can figure out to accomplish the same with curb and gutter is to split the topo, create a parking area, spit that into a curb and gutter area, then split the curb from the gutter. A little productivity is lost in all of that. Would love any other solutions.
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did anyone figure out the best way to do curbs? i am wondering if revit 8.1 solved this problem
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I use Revit 8.1, and there is not a special curb function yet. I have done a lot of trial and error and this is what I have learned.
I just made a several types of curbs in and around a parking area. The topo in the area changes alot. In order to get the face of the curb to to show I had to do some splitting and merging.
Here is how I did it.
1. Using a cad site plan underlay as a guide, I spit the entire parking area, including the adjoining sidewalks, to its own topo surface by either picking the lines on the plan or tracing over it depending on the quality of the lines I was tracing. I deffinately would recommend cleaning up autocad drawings before tracing them to ensure all the corners meet and lines dont intercect.
I then changed the material of the whloe thing to asphalt. (it was grass to start)
I then split from that topo surface at the outside of each curb areas. If there was an apron, I would split where the asphalt hit the concrete. If there was an asphalt curb around an island, I would split it at the parking lot side of the curb.
Now that the the curb/sidewalks are a different topo surface, I changed the material to a sidewalk colored concrete.
In order to see the face of the curb you have to split the curb/ sidewalk surface a few more times. In the split surface command, select the curb surface. Then, click the offset box and type in a distance to offset. If there is a concrete apron have to do one more split than in a situation where the curb jumps up right at the asphalt. So if you have an apron your first offset may be 12". after that surface is finished,(if needed) split the curb surface(again) by tracing the line where the curb jumps up with an offset of one half inch. (0.5" finish the surface. Then split the curb surface again from the same line but with an offset of on inch (1". Finish the surface. Your surfaces at this time should be the parking surface (or apron surface), then a half inch wide curb surface, then another half inch wide curb surface, and finally the remainder of the curb/ sidewalk surface.
The next thing to do is to change the elevation of the sidewalk.You will be chaging the elevation of the main sidewalk surface and the half inch surface next to it. DONT FREAK OUT. There is no need to edit the elevation points individually. First select the main sidewalk surface and hit the edit button. With a crossing window, select all of the points in that surface. Then in your project browser, choose an elevation that will allow you to see the entire width of the site. (set this view up ahead of time, making sure you can see the site topos and that it is in wireframe view) In the elevation view the elevation points should be red if they are still selected. If they are not, use a crossing window to select them again. Now hit the move button, then click anywhere on the drawing to select a starting point. Move the mouse in the up direction from where you clicked and while making sure the line is going straight up (use ortho and turn off snaps) type in the height of the curb, lets say 6", then hit enter. Click finish surface. Now do the same procedure to the adjoining half inch wide curb surface, moving it the same 6" and finishing the surface.
Now change to a 3D view where you can see that 2 surfaces are 6" higher than the other. At this time, in shaded view, the curb will NOT have a face. Click merge surface. It asks you to select the primary surface. Select the LOWER half inch wide curb surface. Then click on the UPPER half inch wide curb surface. The two surfaces merge into one surface that is steeply sloped connecting the parking surface to the curb surface.
Some hints:
The critical part of the process is to have that seemingly extra split region because the merge command assigns the property of the primary surface to the new surface. In my example, you will notice that a new surface is created to replace the two half inch wide surfaces. If you look at the new surface in section, it is a slope that starts and finishes at the opposite edges of the original two surfaces, making the face slope the full 1 inch within the 6" curb height. Once you understand that concept you can use the feature to to your advantage to really control the look of the surface. To create a better and crisper looking curb, use a smaller offset. ie. instead of offsetting one half inch and then one inch, do an offset of .25" then .5 in. or .125" then .25". You get the idea. The smaller the offset. the steeper the angle. Likewise, if you use larger offsets you can create an ANGLED CURB. Or make more offsets to slope the apron buck up. ( ooooooooh)
once the curbs are made you can create SUBREGIONS on top of them to change color or material without having to split the surface again. Use this to make parking islands green grass or make parts of your curb granite, red or yellow for loading zones. I use subregions to paint yellow parking stripes that conform the topo of an asphalt colored surface.
I think I might try to use this method to make an in-ground pool with a sloped bottom and lap lines painted on the bottom with subregions so they will conform to the slope of the pool.
Anyway, Hope this helps
Scott Dexter
Post edited on 2005-11-07 13:04:45
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Joined: Mon, Mar 14, 2005
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the best way i found was to do it as a ramp!
work out your falls or heights at head and tail, the good thing about doing it like this is that you can create railing that shape like your curb...
spliting site and changing RL's is just a pain in the B$%t! so keep it simple... 
HTH
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It obviously is a glaring omission at this stage - I also find the problem with using the floor tool, is you end up scheduling a sidewalk in your floor schedule, not something I want to do if the sidewalk is an existing condition!
I'm assuming a 'curb' feature is in the wishlist?
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You could just set your floor/ramp as an existing phase to not have it schedule.
Kerbs are generally done by doing a floor slab edge or in-place family sweep using a loaded profile.
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