  SNCF, the French public train company, is experimenting to develop new types
of transportation services by tackling vehicle routing problems. While many
deep learning models have been used to tackle efficiently vehicle routing
problems, it is difficult to take into account time related constraints. In
this paper, we solve the Capacitated Vehicle Routing Problem with Time Windows
(CVRPTW) and the Capacitated Pickup and Delivery Problem with Time Windows
(CPDPTW) with a constructive iterative Deep Learning algorithm. We use an
Attention Encoder-Decoder structure and design a novel insertion heuristic for
the feasibility check of the CPDPTW. Our models yields results that are better
than best known learning solutions on the CVRPTW. We show the feasibility of
deep learning techniques for solving the CPDPTW but witness the limitations of
our iterative approach in terms of computational complexity.

Artificial Intelligence;Optimization and Control