A double-track vehicle, comprising upper and lower carriages, which are respectively a passenger carriage (1) for providing passenger seats and a cargo carriage (2) for placing cargo, the passenger carriage (1) and the cargo carriage (2) being respectively provided with a passenger door (3) for passengers to get on and off and a cargo door (4) for loading and unloading cargo. The vehicle carries out simultaneous transport of passengers and cargo, allowing for the function of the rail vehicle to no longer be singular and largely reducing transport and maintenance costs. At the same time, passenger transport and cargo transport are divided into two layers, which completely separates cargo transport and passenger transport, thereby providing passengers with a comfortable seating environment and improving seating safety.

The purpose of this plan is to reduce the damages in intercity train crash cases to the passengers. In the next phase, if the train catches fire with the increase in the incident time of smoke and fire entering to the train, the passenger is required to react appropriately. The coupe and the corridor are designed to prevent the fuel, fire, heat and wear from penetrating into the coupe so passengers can have plenty of time to get out of the train. In addition to sound proof its walls are heat and fire proof.

The purpose of this plan is to reduce the damages in intercity train crash cases to the passengers. In the next phase, if the train catches fire with the increase in the incident time of smoke and fire entering to the train, the passenger is required to react appropriately. The coupe and the corridor are designed to prevent the fuel, fire, heat and wear from penetrating into the coupe so passengers can have plenty of time to get out of the train. In addition to sound proof its walls are heat and fire proof.