A couple ended up in hospital early Wednesday after their SUV ploughed into the back of a parked dump truck on the highway south of Playa del Carmen, in Mexico's Riviera Maya.

The crash happened in the dark, pre-dawn hours on a stretch of highway roughly 21 kilometres south of Playa del Carmen. Police say the driver apparently failed to notice signs marking a partial lane closure and ran straight into a dump truck parked at the roadworks. The male driver and his female passenger were taken by ambulance to a Playa del Carmen hospital. Their injuries were not disclosed. The vehicle was described as an older-model SUV.

For the thousands of visitors who rent cars in the Riviera Maya each year, the story is a useful warning rather than a reason to panic. The main highway down the coast is generally in decent shape, but it carries a constant mix of heavy trucks, coaches, taxis and slow-moving local traffic. Roadworks and lane closures do appear, sometimes with signage that is modest, faded or easy to miss at night — exactly the combination that seems to have played a part here.

Driving in the dark is the biggest single risk factor. Street lighting outside towns is patchy, unlit trucks and parked vehicles can sit in or near a lane, and topes (speed bumps) occasionally appear without much warning, especially near villages and hotel entrances. If your flight lands late and you are picking up a rental, it is worth considering an airport hotel or a transfer for the first night and driving in daylight.

The practical takeaways are simple: slow down around any cones, barriers or signage, keep right where a lane is closed, use high beams where there is no oncoming traffic, and leave more following distance than you would back home. Insurance should be arranged before you leave the rental desk — Mexican liability requirements differ from those in the US and Europe, and your domestic policy probably will not cover you. An international driving permit is not strictly required for short visits but carrying your passport and licence is expected at checkpoints.

None of this should put you off a self-drive trip. Having your own car is a great way to reach cenotes, quiet beaches and towns like Tulum, Akumal and Puerto Morelos on your own schedule. It just rewards a calmer, more defensive style behind the wheel than you might be used to.