Application of Polyurethane Polymer and Assistant Rails to Settling the Abnormal Vehicle-Track Dynamic Effects in Transition Zone between Ballastless and Ballasted Track

Table 4

Maximum rail accelerations and reduction ratios for different transition patterns.

Transition pattern	Without settlement	With polyurethane polymer alone	With the combination use of polyurethane polymer and assistant rails
Maximum rail accelerations	201.3	168.1	149.7
Reduction ratio compared with without settlement (%)	0	16.5	25.6