While I’m a HUGE fan of reducing parking requirements for housing and mixed-use projects, there is still a need to design (and model) parking garages. This can be a real challenge to new Revit users, as there IS a ramp tool, and it’s supposed to be automatic, Right? Right. But like many real world situations, the basic ramp tool isn’t much help when it comes to the complex shapes and required slope transitions that constitute parking garage ramps. In fact, I don’t advise using the Ramp tool at all – build them more accurately with Floors!
- Define the area constraints (surrounding walls, start/stop of ramp location)
- Know your slope and transition (blend) slope guidelines
- Create floors for each segment of the ramp
- Add up inside edge length of all floor segments (by slope %) *tangent of angle = Opposite/Adjacent
- Modify Points of each floor segment to drop each inner corner (slope must work at the shortest route)
- Verify ramp endpoints correspond to deck heights (expect slight tweaking)
- Modify points of each floor segment to drop each outer corner
- GROUP the overall ramp to minimize accidental editing
Calculate 9% slope inner corner elevations from either end.