Rubberized asphalt coatings for ballasted track and related systems and methods

A method for forming a track system having rails, the method comprising:

• providing a plurality of track ties configured to support the rails;
• providing stone ballast configured to support the plurality of track ties;
• and
• disposing a layer of rubberized asphalt coating between the ballast and the plurality of track ties, the rubberized asphalt coating having a bituminous binder, crumb rubber particles, and small gradation stone aggregate, the rubberized asphalt coating exhibiting 6% to 10% by volume of the bituminous binder, 22% to 40% by volume of the crumb rubber particles, and 58% to 72% by volume of the small gradation stone aggregate;
• wherein resiliency of the layer of rubberized asphalt coating permits particles of the ballast in direct contact with the layer of rubberized asphalt coating to move elastically relative to the bottom of the tie and also to each other while inhibiting abrasion of adjacent ones of the particles of the ballast against each other and against the bottom of the track ties.