The slab track test at TTC is sponsored by the Federal Railroad Administration (FRA) and PCA. The FAST train at TTC using 315,000-lb freight cars
(39 ton axle loads) has accumulated over 100 million gross tons of traffic on the test section. Results show that slab track can accommodate the heavy axle freight rail loads while maintaining the vertical and horizontal geometry required by high speed rail
Conclusion Several conclusions can be reached regarding the test on the concrete slab track section at TTC as follows: 1. Concrete slab track can be constructed to high-speed rail tolerances (Class 9) using conventional slab track construction methods. 2. The impact forces from the FAST train are significantly attenuated by the elastic properties of the fasteners and block ties and are therefore lower than on ballasted track. 3. Slab track can maintain high-speed track geometry while being subjected to heavy axle loads. 4. Soil pressures are evenly distributed under slab track. 5. Modern methods of structural analysis can be used to design slab track 6. The track modulus of slab track is much more uniform than for ballasted track.
High-speed rail (HSR) Class 9 tracks are designed for a maximum speed of 200 miles per hour (mph) ~ 320km/h. Here are some other specifications for HSR tracks:
Về lý thuyết slab track có thể cho cả tầu cao tốc 320km/h và chở hàng hàng nặng 39 tấn trục chạy chung, 22.5 tấn trục và tốc độ 350km/h chưa là vấn đề gì với slab track theo tính toán và thử nghiệm.