De Beauvoir Cycle Gang Strikes Again

'Bike routes' are by definition not 'traffic-free', as there will be people travelling along there on foot and by bike. Beware of the lazy shorthand that means 'motor traffic-free' when it says 'traffic-free'. It's inaccurate and misleading.

Oliver, you're being pedantic.
Language forms and evolves through common acceptance and usage. The common usage of "traffic" means motor traffic, and people, horses, bicycles etc are not considered to be traffic.
Nobody says "motor traffic" in real life, and attempting to redefine language like this is the equivalent of insisting that "gay" may only mean "happy".