Complex sentence: It is believed that on the grounds of safety the junction was altered to a staggared junction in about the mid 1980s it was renamed to "Cunninghamhead", which causes great confusion with Cunninghamhead Estate.
Split into simpler sentences: It is believed that on the grounds of safety the junction was altered to a staggared junction. In about the mid 1980s it was renamed to "Cunninghamhead", which causes great confusion with Cunninghamhead Estate.