On Wednesday, Gwinnett County commissioners unanimously approved a plan for how to spend the bulk of proceeds from the three-year, 1-percent sales tax approved by voters last year. The majority of the estimated $417 million the county expects to collect from the special purpose local option sales tax, or SPLOST, will go to transportation projects. The rest of the money will be spent on other projects, including renovating existing county parks; buying new fire, police and sheriff’s office vehicles; replacing public libraries; and improving county senior centers. Gwinnett cities will also receive about $96 million in SPLOST proceeds to spend on projects of their choosing.