I think "average cost including benefits" is the important part. For me, I was concerned with finding out what the average base salary was for a union employee - and not just any union employee, but those that are affiliated with SEIU and ATU, since those are the ones in negotiation. What I found was that the average base salaries were between 45k to 70k for these SEIU and ATU workers.

A lot of the information on salaries that's published out there include overtime, pension, medical benefits, PTO, etc., but that's the total cost for BART, and not necessarily the annual income that an employee pockets. For me, I wanted to see if a BART employee could make a comfortable living in the bay area, and for that, things like overtime and pension aren't as relevant since you either have to work more to earn them, or you don't really see them until the future. Thus, the much lower 45k to 70k I arrived at.

It's fun to explore this if you can: https://github.com/enjalot/bart/blob/master/data/bart-comp-a... It's a list of BART employees' total cost of employment, scraped from http://www.mercurynews.com/salaries/bay-area