
When a large passenger bus experiences brake failure and loses control, the correct approach is to steer into an emergency escape lane, use engine braking, apply the parking brake, and if necessary, use the vehicle body to scrape against roadside obstacles to slow down. Quickly use the handbrake and shift to a lower gear, maintain control of the steering wheel, promptly avoid obstacles, and drive the vehicle to a safer location. Below are precautions for driving on highways: 1. Drive in the designated lane: Highways have clearly marked lanes for large vehicles, small vehicles, etc. When overtaking, once you occupy a lane, return to your appropriate lane promptly after completing the overtaking maneuver, and avoid occupying other lanes for extended periods. Additionally, emergency lanes should not be occupied unless for special reasons. 2. Maintain a safe speed and avoid speeding: The dangers of speeding are well-known, as it can lead to irreversible consequences both on local roads and highways. 3. Maintain a safe following distance: Under normal conditions, on dry roads with good braking, the following distance (in meters) should not be less than the speed (in km/h). For example, at 80 km/h, the distance should be no less than 80 meters; at 100 km/h, no less than 100 meters. Always pay attention to roadside distance markers. In rainy, foggy, snowy, or wet road conditions, the following distance should be doubled. 4. Observe traffic signs: Always be aware of roadside and overhead signs and markings while driving, and stay slightly to the right to avoid running over the right lane divider, allowing sufficient lateral distance for overtaking vehicles. 5. Do not arbitrarily occupy emergency lanes during accidents: Traffic incidents are inevitable on highways. If other vehicles cause an accident leading to lane blockage, do not occupy the emergency lane, as this may hinder rescue vehicles from performing their duties. 6. Avoid fatigued driving and take timely breaks: Fatigued driving is extremely dangerous on highways. When fatigued, a driver's reaction time slows, making it difficult to respond appropriately to sudden situations.

I've been driving long-distance buses for almost ten years. If you suddenly encounter a soft brake pedal that goes all the way down, don't panic. The first thing to do is immediately flash your hazard lights like crazy to alert the vehicles behind you, while keeping your left hand firmly on the horn and not letting go. With your right hand, quickly downshift to a lower gear—if it's an automatic, switch to manual mode and downshift to use engine braking to slow down. If you can still steer, try to find an emergency lane or an uphill road. If there's absolutely no way out, look for the guardrail on the right and let the side of the bus scrape against it to slow down—the sound of metal grinding is a hundred times better than a full-on collision. Remember, never jerk the steering wheel sharply throughout the whole process; buses have a high center of gravity and can easily roll over. Tell the passengers in the back to cover their heads and lean against the seatbacks in front of them.

As a passenger transport driver with over a million kilometers under my belt, I've witnessed countless emergencies. Those few seconds when brakes fail are absolutely critical – staying calm is paramount. First, grip the steering wheel firmly to maintain control, immediately activate hazard lights and sound the horn to alert others. Then rapidly downshift to decelerate – for a 5-speed transmission, yank it straight down to 3rd gear. Simultaneously scan mirrors to assess traffic behind while shouting 'Brace yourselves!' to warn passengers. Aim for high-resistance surfaces like gravel roads or grassy areas if possible. If there's an escape ramp (those gravel-covered inclined lanes) ahead, steer directly into it – that's the safest option. Never attempt using the parking brake! On large vehicles, uneven parking brake force can easily cause jackknifing.

I have handled three cases of bus brake failure accidents. The core principles are: buy time, control direction, and find a buffer. In the blink of an eye, first turn on the hazard lights and press the horn in short bursts (avoid prolonged honking to prevent power loss). For automatic transmission vehicles, immediately shift to L or S gear for manual downshifting. Scan the terrain within 300 meters, prioritizing roadside crash barrels or used tire walls. If none are available, steer toward the mountain side to let the vehicle scrape against the slope for deceleration. Never engage the handbrake first! A fishtailing rear end spells disaster. Instruct rear passengers to wrap their heads and faces with jackets to protect against shattered glass.

Last week, we just conducted brake failure emergency training for the fleet. The key steps are divided into four parts: control direction, downshift to drag speed, find an avoidance zone, and protect passengers. Keep both hands tightly on the steering wheel to maintain a straight line, and repeatedly press and release the brake pedal (sometimes there is residual pressure in the air brake lines). For manual transmissions, use double-clutching to quickly downshift two gears; for automatic transmissions, switch to hill-climb mode. Scan left and right to look for soft barriers or bushes to drive into. Remember to shout 'Head down, protect your neck' three times in advance, reminding passengers to cover the back of their necks with their hands and lower their heads. At the last moment, try to make the front of the vehicle hit the obstacle head-on, as side impacts are more dangerous.

Last time I encountered a brake fluid leak in the mountains, here's how I handled it: Immediately checked the rearview mirror to confirm the lane, turned on the windshield wipers and washer fluid (to give trailing vehicles extra warning). Pressed the clutch pedal fully with my left foot, and within five seconds shifted down from 6th gear to 2nd gear with my right hand. Simultaneously activated all lights including fog lamps. Special attention was paid not to pull the handbrake first, as large buses might spin like tops. Prioritized aiming for crash cushion sand barrels at guardrail terminals, or identified sand-carrying trucks to rear-end (choosing slower ones). When shouting instructions, emphasized having elderly passengers hold tightly to the front seat steel tubes while younger passengers used backpacks to protect their heads. Modern vehicles now have foolproof designs like automatically activating hazard lights during brake failure, but drivers must still develop muscle memory.


