等红灯时，车辆究竟该如何操作？

Group 1 - The article discusses the differences in operation and safety between various transmission modes (P, N, D) in vehicles, emphasizing the importance of understanding these modes for safe driving [3][5][10] - It highlights that P (Park) mode locks the output shaft mechanically, preventing vehicle movement when stationary, but can cause damage if engaged while the vehicle is in motion [5][7] - D (Drive) mode allows for easy driving but can lead to overheating of the transmission fluid if the vehicle is stationary for extended periods, with temperature rising approximately 1.2-1.5°C per minute [5][10] Group 2 - N (Neutral) mode disconnects the powertrain, reducing engine load and is recommended for long stops, although it may not prevent the vehicle from rolling on inclines [7][10] - For short stops (under 30 seconds), D mode with brake is preferred for quick response, but it requires continuous pressure on the brake pedal, which can lead to fatigue [8][10] - For longer stops (over 30 seconds), N mode with handbrake is advised to cut power transmission and reduce engine load, thus lowering fuel consumption and prolonging transmission fluid life [10]