Passengers are allowed to carry a limited number of smaller bags with them in the vehicle, which typically contain valuables and items needed during the journey.
Studies have found that passengers often pause to retrieve cabin baggage during an emergency evacuation, despite instructions to the contrary in pre-flight safety briefings.
Video of the evacuation of a Sukhoi Superjet that caught fire on landing in 2019 clearly shows passengers on the emergency slides with large suitcases, raising questions as to whether this contributed to the loss of life.
[3] The IATA guidelines are voluntary; the actual size and weight limits of cabin baggage imposed by airlines differ widely.
[citation needed] A common regulation for cabin baggage restrictions was introduced on 6 November 2006 in European Union and in Switzerland, Norway and Iceland.