Occupied footpaths

It is very difficult to find any footpath especially of Dhaka city which is not occupied by unauthorized people. We always say poor businessmen such as " Hawkers" occupy footpath and make them dirty. I agree that they are responsible for making footpath dirty but only partially. But at the same time it is almost impossible to find any footpath in Dhaka city which is not occupied by developers and/or where vehicles are not parked. Developers not only occupy footpath but also destroy them. I have never seen any developer repair the footpath after their work is finished. Moreover, the whole area remains dirty and dusty till the developers finish their work. After the finish of work of one developer another developer starts working nearby. Hence, the footpath remains dirty and occupied. The government should strictly enforce the rules so that people can walk through footpaths.