ease
Some urban planners still believe that the best way to ease traffic congestion is to build more roads, especially roads that can take drivers around or over crowded city streets.
Verb
to make something more appealing or more likely to happen
encourage
Other, more forward-thinking planners know that more and more drivers and cars are taking to the roads every day, something they don’t want to encourage.
unwilling
These planners are unwilling to allow for more private automobiles when public transport is so much better both for people and the environment.