mechanism sa ilalim ng kalsada?pwede nga yung concept, pero mahirap yata gawin na transparent yung operation nito ... i mean, the motorist is likely to feel the mechanism as if he hits some kind of hump ... unless installed on locations approaching the toll booth and also serve as rumble strips to remind the motorist to deceleratea different approach could be the mechanism is designed similar to a weighing platform ... it may not feel like a hump, but still, the motorist will notice something and can be irritable if there are too many "platforms" on the road
yung "platform" mechanism maganda pala sa mismong toll booth ilagay yun ... let the platform drive some kind of pump to create pressure to drive a turbine for generator ... pwedeng maraming platforms sa area ng toll booth, tutal mabagal na mga sasakyan dun