I live in Barcelona and most of the people are not happy. A simple math problem for you in order to understand why. Currently with a top speed of 50kmh the aver

I live in Barcelona and most of the people are not happy. A simple math problem for you in order to understand why. Currently with a top speed of 50kmh the average speed is 36kmh. Now reducing the top speed partially to 10kmh how fast will be the average? Well, it can be argued that the traffic will shift to the faster streets on the periphery of the super blocks, so this streets will have to grow in order to be able to handle the traffic, this can be challenging in terms of space. But what really pisses my catalan friends and colleagues is that the superblock will come first and accordingly the tweaks on the periphery. This will cause homongous traffic jams because of the construction works on the periphery of the superblocks. So this is aimless activism, those who know traffic and transportation in Barcelona will agree that smart traffic lights will make a huge impact on car pollution. Together with Park and ride; offering a fast transportation to enter and leave the city would be amazing.