perceived safety and community cohesion: Higher speeds can create real and perceived dangers that may make places less attractive and hinder community cohesion and interaction.
diogelwch canfyddedig a chydlyniant cymunedol: Gall cyflymderau uwch greu peryglon gwirioneddol a chanfyddedig a all wneud lleoedd yn llai deniadol ac amharu ar gydlyniant cymunedol a rhyngweithio.