SP1 – LOW COST MODULAR NEW TRACK SYSTEMS & FAST INSTALLATION
The technological project objectives for SP1 are defined and quantified as follows:
- to develop new low cost modular track systems and components which integrate maintenance strategies, replacement strategies (e.g. future rail renewal without braking down the peripherical track elements and street pavement), ecological concerns and operational strategies: resulting in conceptual design for all considered products/solutions.
- to develop innovative construction methods (automation, prefabrication): the objective is to divide the global track construction time by a factor two in comparison with classical track construction.
- to increase the attractiveness of the new tracks: better noise and vibration mitigation characteristics vs. existing classical tracks on ballast while maintaining the track stability: the objective is a reduction of 6 dB(A) of the groundborne noise and a reduction of 10 dB of
the vibration levels in nearby buildings without increasing the airborne noise by using "resilient" track concepts and high absorption and by use of "green" track lanes where possible.
- To develop embedded metro tracks in tunnels which allow an easy and fast evacuation of people over the tracks in case of emergency. This will eliminate the need for emergency walkways at the side, reducing the diameter of the tunnel. This goes together with the development of safety exits in the front and at the rear of the vehicle.
- To develop alternative solutions for floating slab track systems in metro tunnels and for LRT/tram tracks at grade with the aim to be able to reduce the tunnel diameter of new metro systems and to reduce the foundation depth of LRT/tram track infrastructure
- to reduce the LCC of new tracks by at least 25% in comparison with the state of practice by:
- reducing the material costs by at least 20%, e.g. by using standardised components;
- reducing the overall installation costs by 30% (faster installation, less space occupation);
- increasing the life time by at least 50%: the increase in life time is e.g. due to the use of modular systems which are prefabricated under controlled environment and result in a better quality. Application on site with averse weather conditions (water, rain, cold, heat, …) and sometimes long application and stabilisation times are thus avoided and
quality and life time are improved.