sigc::signal<void, unsigned, unsigned, bool> signal_loco_speed;
sigc::signal<void, unsigned, unsigned, bool> signal_loco_function;
sigc::signal<void, unsigned, unsigned> signal_turnout;
sigc::signal<void, unsigned, unsigned, bool> signal_loco_speed;
sigc::signal<void, unsigned, unsigned, bool> signal_loco_function;
sigc::signal<void, unsigned, unsigned> signal_turnout;