Continuity mistake: In the shot where Payne gives Jack permission to unload Sam from the bus, listen closely to the male news anchor on the immediate right. He reassures his viewing audience that the bus hasn't exploded, although a woman was caught in the blast and fell. This report airs roughly two minutes before the incident even takes place. (00:57:05 - 00:59:15)
Revealing mistake: When Jack is on the phone with Payne at LAX, a Suburban carrying Lieutenant McMahon and Norwood skids onscreen from between some orange cones. But tire tracks from earlier takes can be seen on the pavement. (01:10:00)
Continuity mistake: After Payne loses his head, Jack says "Yeah? Well I'm taller." Between shots, Jack's right arm instantly goes from resting at his side to a lifted position. (01:44:35)
Continuity mistake: An obvious stunt double is briefly visible pushing a baby carriage full of cans into the crosswalk as Annie unknowingly rams the bus into it. Initially we see an older woman pushing the carriage along after chatting with her friend. In a view from within the moving bus's front window, however, a much younger woman has briefly taken her place for a couple of shots. (00:50:05)
Visible crew/equipment: A film truck is reflected in the bus's bumper when Jack exits and steps onto the Suburban. (01:11:15)
Continuity mistake: The Suburban that swerves onto the LAX runway to retrieve Jack has no scaffold equipped on its driver's side, but we know for a fact that moments later Jack actually exits the bus and steps safely onto one. Somehow the Suburban has managed to gain a scaffold at cruising speed, but this couldn't have possibly happened unless a different, identical-looking vehicle with a scaffold pulled up at some point during the scene to take its place. (01:10:05 - 01:11:15)
Continuity mistake: When Jack starts tying a rope to the access panel, he faces the back of the bus initially but manages to turn completely right between shots, facing the side windows all of a sudden. (01:29:20)
Visible crew/equipment: When Jack flashes his badge at Tuneman, a camera's shadow is visible on the pavement. (00:35:00)
Visible crew/equipment: When the bus is traveling on the shoulder, a camera truck is visible to the extreme left immediately before Annie asks whether or not she should stay on the highway. (00:46:35)
Continuity mistake: When the crane breaks free from its bolts and starts flying towards some ventilation windows, it obliterates the upper pair. However in the next view from within an air duct, both of these windows just swing open freely as the crane busts through, and yet they barely appear to have suffered a scratch or bend in the process. (00:15:00)
Revealing mistake: At the off-ramp's red light Jack stomps on Annie's foot to keep the bus going, but she screams in pain before her foot actually gets crushed. (00:47:15)
Continuity mistake: In the scene where the Pacific Courier Freight plane gets blown up, you can see that it is being towed alongside another plane, and some people standing/walking around next to it. In the next shot, where we see the camera moving closer and closer to the plane from the bus's perspective, the runway the plane was just being towed on is gone, as is the plane it was going past a moment ago along with the people. There was no time between shots for the plane to have been moved so far away. (01:30:35)
Continuity mistake: In a camera shot from behind the bus, it shows Traven moving the Jaguar in front of the bus. In the next camera shot from the front, it shows Traven moving the Jaguar again in front of the bus. He'd already completed the move in the previous shot.
Audio problem: When the first bus blows up (the one that Bob was driving) you can hear the explosion before the bus actually blows up.
Continuity mistake: At the beginning of the movie we see Keanu Reeves taking Jeff Daniels "out of the equation" by shooting him in the leg. We realise it's a serious injury as he requires the use of a cane when receiving his medal. However later on in the movie when they move in on Dennis Hopper's home, which takes place the next day, Daniels is part of the assault team and has no cane, no limp and is obviously very mobile.
Continuity mistake: When Jack drives on the shoulder, honking his horn to let people know that he's coming, he's pressing on a silver ring, which is the horn, but in the next shot, it's gone. While the ring only covers half the wheel, as he's going almost entirely straight it should always be in the same position. (00:31:35)
Factual error: When the bus is forced to exit the freeway due to the stopped traffic up ahead, the exit taken is a curved exit and stays level. The storyline mentions this was the Western Ave exit from the Santa Monica freeway. The real exits for Western Ave (from each direction) head straight uphill to the street above and with no curves at all.
Revealing mistake: In the scene after the bus makes the hard right turn, it's moving towards the exit onto the 105 freeway. The bus is surrounded by cop cars and motorcycles - the camera angle is from the air. The bus slams on the brakes to avoid hitting the cop car in front of it - it's only a second but it's obvious the bus wasn't going over 50mph. (00:52:57)
Revealing mistake: The monitor Payne is using to the watch the inside of the bus is nowhere to be seen every time the inside of his hideout is shown. Only until it's revealed he had a camera hidden is the monitor shown.
Plot hole: It is never definitively stated if the bomb is tied directly to the axle, triggered by the speedometer instrumentation or throttle. Regardless, as long as the wheels keep spinning above 50mph the bomb will not explode by design. This means that if you lifted the wheels of the bus off the ground or you bottom out, you could keep accelerating without any speed at all. This could be accomplished in any number of ways. One example would be driving on grass and keeping the tires spinning.
Suggested correction: And that would accomplish precisely nothing. They know Payne is watching them and he explicitly stated no-one is allowed to get off the bus or he will detonate it, only making an exception for the injured driver. What good is finding a way to keep the wheels in motion if everyone is still stuck on the bus?
The mistake is suggesting that you basically find a way to stop the bus but keep the wheels spinning such as grounding it on a hill. Then while the bus is stationary, just (I'm assuming here) put a weight on the accelerator to keep the wheels spinning and then everyone just hop off and walk away. However, you're correct in that Howard is watching the live feed so would just blow the bomb when people got off.
I fully understood what the entry was suggesting, but Payne's demand that everyone stays on the bus under penalty of detonation voids it. Even if that wasn't the case, finding a way to somehow stop the bus but keeping the wheels spinning (such as lifting it with a helicopter) would be a logistical nightmare in that scenario. Their plans to drive on the otherwise unoccupied freeway and then circle the airport runway were much more practical.
The other glaring problem with "stopping the bus while keeping the wheels moving" is those pesky laws of physics. Momentum, kinetic energy, and inertia would all prevent that from happening under any circumstance that could be quickly cobbled together by any police department. I'm sure physicists and engineers could come up with something given a few months and a buttload of money, but for this example you could consider it impossible - especially without causing a lot of passenger injuries.
