According to the City of Roanoke's 911 center, there are several intersections where traffic signals are on flash. Citizens should use caution at these intersections. Several greenway entrances are closed and parts of the greenway system are underwater. Also citizens should be mindful that there may be debris in the form of gravel, small branches, or other items in the roadways as a result of the flood. Citizens are asked to exercise caution and be vigilant.