A non-transitory computer-readable storage medium, storing computer instructions, wherein when reading the computer instructions in the storage medium, a computer executes a method for smart city overheight and overload emergency early warning, the method comprising:
- obtaining vehicle sensing data of an upstream road section of a target road section, the target road section being an overheight and overloaded road section;
- determining a risk vehicle based on the vehicle sensing data;
- and
- in response to an estimated arrival time of the risk vehicle at the target road section satisfying a preset condition, performing traffic signal light control, including:
- predicting a time at which the risk vehicle arrives at a target traffic signal light;
- determining a first control parameter based on the time at which the risk vehicle arrives at the target traffic signal light, wherein the first control parameter includes a start time at which the target traffic signal light is switched to a target state;
- sending a first control instruction to the target traffic signal light based on the first control parameter;
- and
- controlling, based on the first control instruction, the target traffic signal light to trigger a sub-clock at the start time, and controlling a relay group to conduct a first lamp bead unit, so as to drive the first lamp bead unit to emit light.