台风“竹节草”外围将影响山东，速记这些安全出行小知识→

Core Points - Recent heavy rainfall in North China has led to significant urban flooding risks, particularly in Shandong province due to local drainage capacity issues [1][3] - The article emphasizes the importance of safety measures and self-rescue techniques during urban flooding events [4][5] Summary by Sections Urban Flooding Causes - Urban flooding is primarily caused by local rainfall and inadequate drainage systems, leading to water accumulation in low-lying areas [3] - Areas most susceptible to flooding include underpasses, underground transportation, basements, and construction sites [3] Safety Measures During Flooding - Residents are advised to monitor weather warnings and take preventive measures, such as building barriers with sandbags in vulnerable areas [4] - It is crucial to avoid electrical hazards and to cut off power and gas supplies during flooding [4] Vehicle Safety - Drivers should avoid flooded areas and park vehicles in higher locations to prevent water damage [5] - If a vehicle becomes submerged, occupants should break windows to escape and avoid restarting the engine [5] Post-Flood Health Precautions - After flooding, it is important to avoid drinking untreated water and to ensure food safety by reheating leftovers [8] - The article suggests preparing emergency kits with essential supplies and maintaining communication with neighbors for emergency planning [10]