The finished ramp. Overall it's worked out well. Some will ride up/down, some just down. I'll ride a bakfiets down it but have only gone up once or twice. Pedals on oma/opa clear OK, pedals on bakfiets will not so they need to be about 3&6 o'clock.
It's been interesting seeing what people walking do - most use the ramp rather than the steps.
Thanks for all of the input on this!
Bike Ramp