"calm zones" on Mexico City streets??

I'm still comparing Tokyo and DF; it's hard to stop.

The crowded-ness of Mexico is often shrugged off by Mexicans. As in, "there's nothing that can be done, we just have to live with the bad traffic and rude people bc that is what happens with large cities". When I have mentioned that better road construction, requiring adequate driver's training, forcing buses to keep to a route and a schedule and designated pick-up zones, and actually enforcing traffic rules amongst drivers/buses/pedestrians/bikers, Mexicans have dismissed those ideas as if I have recommended that Mexico City be relocated to the moon where there is more space.

After staying in Tokyo - another very large, very crowded city - for 10 days, I know that crowd control can be well done. Despite the business of every train station and every store, I did not feel pushed or crowded in Tokyo. There is always space between the cars when they are driving. The buses pull off the road to pick up people. Pedestrians wait their turn to cross the street. Bikers stay in their bike lane. Everyone respects each others' space, which is crucial in such a crowded environment.

So when I read that Mexico City is going to "give priority to pedestrians and bikers" I had to laugh. Really? Who is going to enforce that priority? Drivers could be fined $150 - $225 USD for infringing on the rights of a biker or pedestrian, but who will issue the ticket? The corrupt policeman or the impotent traffic guard or the absent federal police? When is the fine paid - after someone is lying dead in the street? Where exactly will these pedestrians and bikers travel? In the road with the out-of-control buses or the untrained drivers? In the broken narrow sidewalks crowded with dead dogs and trees growing out of them?
Yeah, I'm not so much seeing this happening.
Now, if those fines went to pay for bike lanes or bike helmets... then we might be onto something.

http://thenews.com.mx/articulo/new-priority-on-the-citys-streets-10218