- void arrive();
- void goto_sensor(unsigned);
- void goto_sensor_str(const std::string &);
- void goto_zone(const std::string &);
- void route(const std::string &);
- void reverse();
- void speed(unsigned);
- void travel_to(unsigned);
- void travel_past(unsigned);
- void wait(unsigned);
- void wait_train(unsigned, unsigned);
- void wait_until(unsigned, unsigned);