I guessed everyone had their own fair share of experience watching others changing tires, or yourselves having a puncture. Well it's fairly normal for drivers to stop their car and grab the necessary from the boot and start getting down dirty, or ladies stopping their cars beside highways waving like a damsel in distress.
However, many were actually very wrong with how you're dealing with such a seemingly 'normal' incident. The very reason for cars to NOT travel at high speeds with a punctures tyre, is because it's extremely dangerous. This is due our tyres was designed to hold on to the rims using air pressure. Once the tyre was deflated due to a puncture, the high speed rolling of the wheels would've easily spun the tyre out leaving you with a bigger wheel diameter at one end, and a small, metal rim that has virtually no traction on the road and the vehicle would become extremely unstable, which might result in a crash.
However, if a puncture happened and if you were to slow down, to less than 35km/h, the tyre should stay with the rim (based on a deflated tyre, not a rip opened tyre); especially if you're traveling on the freeway/highway, rather than stopping abruptly and parked along the shoulder, coming out of your car and changing tyres or waiting for help, you should in fact travel slowly with the hazard lights on, until you found some highway petrol station or rest house. Yes, some may say this would damage the rims, but there are just too many cases of cars stopping alongside the road got struck by oncoming vehicles that probably weren't looking ahead, or themselves trying to stop by the road for a tyre change.
The risks of stopping by the roadside are much much higher than that of traveling slowly with a punctured tyre, hell make it four punctured tyres still, you're not advised to stop your vehicle by the road side of a freeway, and if you have no choice, do not stay in your car. Wait for a good opportunity, go for a safe distance.
