If you are living in Dhaka, you must know when our most of the (almost all) road construction done. So, whenever you go out you will see every where road had been cut or dig for maintenance or construction. Good for the inhabitants. Now they can easily understand that the rainy season is coming. Rain water will stop the work; water will be filled where they cut the road, it will be impossible for anyone to cross the road. Many people will fall down from the rickshaw and will have a bath with the mix of rain and drain water. If they are lucky then they might get chance to visit inside the manhole.