The HDPE plastic sleeper is easier to accept than the wooden sleepers to produce the current sleeper specifications and make the surface of the sleepers become "hairy", so that they will not slide after being installed on the roadbed. Rail consultants in Pennsylvania say HDPE plastic sleepers can slide more horizontally than wooden sleepers.
HDPE塑料轨枕比木质轨枕更容易接受现在的轨枕规格生产和使其表面变“毛”，从而安装在路基上后不会滑动。宾夕法尼亚洲的铁路咨询专家说，HDPE塑料轨枕横向滑动能优于木质轨枕。
