Freight transport modal shifts in a TIMES energy model: Impacts of endogenous and exogenous modeling choice

•Endogenous and exogenous approaches lead to different results on several indicators.•The exogenous approach makes it possible to model disruptions.•The exogenous approach is more flexible on the investment in complex technologies.•Modal shifts reduce energy consumption, but it displaces it elsewhere (rebound effect)•The endogenous approach shifts behaviors in a rather limited way.•Only the maximum exogenous scenario results in significant cost avoidance.