Mayor Walsh wants to crack down on misbehaving scooter and ATV drivers, who he says have created "a notorious atmosphere of criminal and other disturbing activity so elevated as to endanger the common good and general welfare of the city."

His solution: An ordinance that would not only prohibit scooter and ATV drivers from doing the sort of stuff they like to do but would prohibit people from storing more than one unlicensed motorbike or ATV unless they have a particular garage license. Plus, all motorbikes, scooters and ATVs would have to be registered with the RMV.

On Wednesday, the City Council will consider the mayor's proposed ban on "trick or stunt riding" on city streets - and on land, such as fields at Franklin Park, whose owners have not given permission for the activity.

In recent months, police have seized a number of scooters and ATVs. Police, however, have tended to leave stunting riders actually zooming around local streets alone.

Walsh's proposed ordinance would give police the power to go after these rascals, with fines of up to $300 per incident:

An operator of any motorized conveyance, including a recreational vehicle, shall not cause such vehicle to ride with its front wheel or wheels raise [sic] from the surface of the road or ground while operated in any public space.

The proposed ordinance would also ban similar behavior involving rear wheels or, in the case of ATVs, side wheels.

Also banned: "Feet or knees planted on the seat while operating in any public space," giving rides to people on single-person bikes and passengers sitting or riding on the handle bars.

The ordinance gives police permission to go on private property to seize bikes or otherwise enforce the law.

The City Council's regularly scheduled meeting begins at noon in its fifth-floor chambers in City Hall. The council typically sends proposed ordinances to a committee for study before voting on them.