The primary reason for unauthorised encampments is the lack of local authority sites and transit and negotiated stopping places, and the closure of many traditional stopping places.
Y prif reswm dros wersylloedd diawdurdod yw diffyg safleoedd awdurdodau lleol a mannau aros wedi’u negodi a safleoedd tramwy, a chau llawer o fannau aros traddodiadol.