The city closed over 300 tourist and camping sites and suspended operations at more than 4,100 rural homestays. Some 250 bus routes were halted, while trains on 10 subway lines were ordered to run at reduced speeds. Residents in mountainous villages, low-lying areas and other places at risk of flooding and geological disasters were evacuated, authorities said. All 3,357 construction sites across the city were also ordered to suspend work as authorities stepped up flood-control measures, with reservoirs releasing water in advance to create additional storage capacity. Renewing its orange alert for torrential rain Wednesday, the National Meteorological Center forecast heavy rain across a broad swath of the country through Thursday morning.