Which construction type is known to provide better crashworthiness?

The construction type known to provide better crashworthiness is unibody. In unibody construction, the vehicle's body and frame are integrated into a single unit, which offers several advantages in terms of safety during a crash. This design allows for more efficient energy absorption upon impact because the entire structure can flex and deform, dispersing the forces experienced during a collision.

Unibody vehicles typically benefit from a lower center of gravity, improved torsional rigidity, and the elimination of excessive weight, which can enhance both handling and safety features. Furthermore, crumple zones can be more effectively designed in unibody construction, further protecting occupants by allowing specific areas of the vehicle to absorb energy during an impact.

In contrast, other construction types like body over frame and modular designs do not integrate the structural components as effectively, which can lead to less passenger safety in crash scenarios. Space frame construction also may not offer the same level of energy absorption properties as unibody systems, even though it has its own strengths in structural integrity. Overall, unibody construction is recognized in the automotive industry for its advantages in providing better crashworthiness and occupant protection.