Assistant transportation planner: This is the entry-level class in the professional transportation planning series. Initially under close supervision, performs basic professional and technical transportation planning work. As experience is gained, assignments become more varied and are performed with greater independence. Positions at this level usually perform most of the duties required of the positions at the associate level, but are not expected to function at the same skill level and usually exercise less independent discretion and judgment in matters related to work procedures and methods. Work is usually supervised while in progress and fits an established structure or pattern..
Associate transportation planner: This is the journey-level class in the professional transportation planning series. Incumbents are expected to perform the full range of professional and technical planning work in transportation and environmental planning activities, in addition to providing project management and administration. Positions at this level are distinguished from the assistant-level by performing the full range of duties as assigned, working independently, and exercising judgment and initiative. Positions at this level receive only occasional instruction or assistance as new or unusual situations arise and are fully aware of the operating procedures and policies of the work unit..