| Assistant Research Scientist | 11 | $95,000 | $85,326 – $104,852 |
| TTI Assistant Research Scientist | 10 | $89,794 | $85,967 – $93,538 |
| Associate Transportation Researcher | 4 | $81,828 | $80,845 – $83,575 |
| Postdoctoral Research Associate | 2 | $64,350 | $62,175 – $66,525 |
| Software Engineer II | 2 | $98,473 | $96,584 – $100,362 |
| TTI Associate Research Scientist | 2 | $119,074 | $117,644 – $120,504 |
| Associate Research Scientist | 2 | $113,466 | $109,816 – $117,116 |
| Assistant Transportation Researcher | 1 | $58,000 | $58,000 – $58,000 |
| Geospatial Analyst III | 1 | $99,000 | $99,000 – $99,000 |
| Associate Transportation Planner | 1 | $77,852 | $77,852 – $77,852 |
| Assistant Research Engineer | 1 | $88,816 | $88,816 – $88,816 |
| Research Engineering Associate III | 1 | $73,904 | $73,904 – $73,904 |
| Software Applications Developer I | 1 | $82,371 | $82,371 – $82,371 |
| Software Applicaiton Developer II | 1 | $74,630 | $74,630 – $74,630 |
| Research Specialist III | 1 | $88,816 | $88,816 – $88,816 |
| TTI Assistant Research Engineer | 1 | $122,080 | $122,080 – $122,080 |