I have seen that at quite number of places on NH7 where road is wide (4 lane) and one can easily reach 100 kmph but sign boards say speed limit as 40kmph or 30kmph. But funny part is within the Bangalore city I have seen boards with speed limit 50kmph at curves. Don't know who installs those boards. Looks like Public works Engineering Dept is sleeping and not feeling pinch even after writing this issue in many papers for manytimes.