Concrete engineers have developed a porous substance called Topmix Permeable, which can support heavy traffic, yet contains tiny holes that allow water to pass right through it. You can dump a thousand gallons on a tiny patch of sidewalk, and it will all soak into the pavement in less than 60 seconds, leaving not even the smallest puddle.
It'll also help with flooding and water conservation efforts. Heavy rains that normally overwhelm drainage systems can easily be handled when all of the roads, parking lots, and sidewalks can help out. Standing water is also a breeding ground for diseases that ravage communities in poorer parts of the world, so Topmix Permeable (TP for short, gotta work on that name) helps with that, too.
But perhaps most importantly, if your city installs this concrete, you will never have to step in a puddle again.