Do allow me to take a moment to discuss the infrastructure I found that deliberately excludes cyclists and pedestrians through design.
Car Parking Garages: The parking garages are specifically designed to physically prevent non-vehicular-motorists from entering.
– The garages are usually underground, so the entry way is very steep.
– There are no sidewalks or anything remotely walkable along the entryway.
– Very importantly, to prevent rogue cyclists, the arm-gates (they open for your car when you receive your parking slip) extend fully across the travel lane so that people can not slip through a gap.
– These so far have all been design elements, but lastly, there must be legal enforcement to prevent non-motorists. Some garages have clearly marked signs indicating a very expensive fine for cyclists and pedestrians that attempt to enter the garage.
Parking garage indicating 95 euro fine for peds, cyclists, and motorcyclists attempting to enter
Parking garage with lanes only just wide enough for cars and no sidewalk.
Since there are so many cyclists, the transit system has had to restrict people from boarding the trains with their bikes.
– Intercity and Sprinter double-decker trains accomplish this by having a narrow entry door, with stairs. (An assistant will pull out a ramp to let wheelchair-users enter as needed).
– Then, you find that the entry area of the train cab is very small, and that to access either of the two floors of sitting areas you either need to go down a few steps, or up a few steps, and then swing open a small but lightweight glass door. All these design elements physically prevent bikes on board.
– However, there are some train cabs that allow cyclists to board with their bike. These cabs are marked with the bike symbol on the outside, so cyclists know where to board. These cabs have spacious standing areas. There is an extra fee for bringing your bike on board.
This is simple. To have separate ped and bike facilities, they will have stairs on the pedestrian path entryways, and ramps or an elevator for the cyclists.
The two photos above show a bridge in Amsterdam with a two way bike path and a ped walkway. The first picture shows the bike ramp, and the ped staircase is just past this ramp and around the corner. The next photo shows the separation between the two paths on the bridge.