Six people had to be taken to hospital, four of whom were seriously injured, after a regional bus slipped off the road on the E22 outside Hörby on Friday.

Ulf Björnstig, professor emeritus in disaster medicine, has researched traffic injuries most of his life.

He is now critical of the fact that more and more bus companies use double-deckers in public transport.

- Wind and slippery road conditions are not a good combination for double-deckers, says Ulf Björnstig.

"Like an invisible hand"

He believes that the buses' high center of gravity puts them at risk of overturning in harsh weather conditions such as wind and slippage.

- I have interviewed drivers who have been affected by this and they say that it is like an invisible hand that grabs hold of the bus, says Ulf Björnstig.

Skånetrafiken: Safe to travel

According to Saman Tondnevis, business area manager at Skånetrafiken, it is safe to travel with a double-decker, but he believes that the speed needs to be adjusted according to the weather.

- Double-deckers have limitations in terms of wind speed where we have to lower our speed when there are very strong winds, Saman Tondnevis, business area manager at Skånetrafiken.

Ulf Björnstig believes that one way to mitigate the risks is to ensure that passengers use seat belts. 

- We urge all passengers to use seat belts, then it is up to each individual, says Saman Tondevis.

After the traffic accident on the E22 outside Hörby, Skånetrafiken must now investigate what has happened and how they can ensure that similar accidents do not happen again.