nomerci,
Safety on city roads is not improved just by building cross bridges.
There are many other things a city must consider: infrastructures, enforcement of adequate driving rules (making it compulsory to stop at pedestrian crossing, more pedestrian crosses, education/ awareness of drivers and pedestrians (taking into account their profile) and maybe more 1000 etcs...
It’s like starting to build a country from scratch and all they achieved here is very sketchy (apart from the hallow facades)!