I don't understand why people are so deeply muddled about this.
There is no train station.
It's for bridges over the railway in the middle of nowhere, far from train stations, along country footpaths.
You cannot traverse the footpaths on a wheelchair, so you cannot even get to the bridge in the first place.
Even new construction train stations don't always get an elevator to go over or under the line to the other platform... although they do get a long ramp and a ramp on the platform to load if the car floors are above the platform.
If these crossings are really in the middle of nowhere along muddy footpaths, I think you could get away with no ramp in the US, too.
>The next phase of the project will include a ramped version of the bridge to support those with impaired mobility.
Though doubt making it less steep and longer would really be an issue.