virtual const char *enumerate_protocols(unsigned) const;
virtual unsigned get_protocol_speed_steps(const std::string &) const;
virtual const char *enumerate_protocols(unsigned) const;
virtual unsigned get_protocol_speed_steps(const std::string &) const;
virtual unsigned add_loco(unsigned, const std::string &, const VehicleType &);
virtual void remove_loco(unsigned);
virtual void set_loco_speed(unsigned, unsigned);
virtual unsigned add_loco(unsigned, const std::string &, const VehicleType &);
virtual void remove_loco(unsigned);
virtual void set_loco_speed(unsigned, unsigned);