Original sentence: Cox's views are somewhat heterodox in the field of transportation and urban planning, and often have a polarising effect, as he opposes planning policies like zoning restrictions ('rationing' of land according to Cox) which are popular with many authorities worldwide, and for his ciricisism of the 'waste' he feels is involved in many public transport schemes.His more recent transport activities oppose the claim that road congestion reduction is obtained from improving urban mass transit
Edited sentence: Cox's views are somewhat heterodox in the field of transportation and urban planning, and often have a polarising effect.His more recent transport activities have sought to debunk those who claim road congestion reduction is obtained from improving urban mass transit