How we move

Transportation systems do not simply emerge. We design them, regulate them and then live with the outcomes those choices produce. A street engineered primarily for vehicle throughput will produce speed and traffic. A transportation network built around separation of uses will produce longer trips. A legal framework written around yesterday's vehicles will struggle when technology creates entirely new forms of mobility.

That means safety, access, economic vitality and mobility are not separate problems. They are outputs of the same physical and regulatory system. Changing those outcomes requires more than signs, enforcement or asking individuals to behave differently. It requires changing the design and, where necessary, the rules themselves.

The same principle should govern new mobility technologies. Risk is better understood through characteristics such as mass, speed and operating capability than through inherited labels like bicycle, scooter or automobile. Good mobility policy should regulate what a vehicle can do and the risk it creates, not simply what previous generations happened to call it.