| 3 | AudJefHwy (Audrey Jeffers Highway) | ttoh.tto.audjefhwy | 1.45 | 1.45 | 100.00% |
| 3 | BeeHwy (Beetham Highway) | ttoh.tto.beehwy | 2.83 | 2.83 | 100.00% |
| 3 | ChuRooHwy (Churchill-Roosevelt Highway) | ttoh.tto.churoohwy | 9.40 | 18.56 | 50.62% |
| 3 | ClaNoelHwy (Claude Noel Highway) | ttoh.tto.clanoelhwy | 0.00 | 6.76 | 0.00% |
| 3 | DieMarHwy (Diego Martin Highway) | ttoh.tto.diemarhwy | 0.00 | 2.74 | 0.00% |
| 3 | RieKirHwy (Rienzi Kirton Highway) | ttoh.tto.riekirhwy | 0.00 | 1.11 | 0.00% |
| 3 | SolHocHwy (Sir Solomon Hochoy Highway) | ttoh.tto.solhochwy | 0.00 | 22.27 | 0.00% |
| 3 | SolHocHwy (Sir Solomon Hochoy Highway (Rousillac)) | ttoh.tto.solhochwyrou | 0.00 | 1.97 | 0.00% |
| 3 | UriButHwy (Uriah Butler Highway) | ttoh.tto.uributhwy | 0.00 | 9.76 | 0.00% |
| 4 | ChaMR (Chaguanas Main Road) | ttomr.tto.chamr | 0.00 | 3.13 | 0.00% |
| 4 | DieMarMR (Diego Martin Main Road) | ttomr.tto.diemarmr | 0.00 | 3.70 | 0.00% |
| 4 | EasMR (Eastern Main Road) | ttomr.tto.easmr | 0.00 | 36.84 | 0.00% |
| 4 | MonMR (Montrose Main Road) | ttomr.tto.monmr | 0.00 | 0.69 | 0.00% |
| 4 | ParMR (Paria Main Road) | ttomr.tto.parmr | 0.00 | 13.76 | 0.00% |
| 4 | SanFerByp (San Fernando Bypass) | ttomr.tto.sanferbyp | 0.00 | 3.15 | 0.00% |
| 4 | SouMR (Southern Main Road (Cunupia)) | ttomr.tto.soumrcun | 0.00 | 11.12 | 0.00% |
| 4 | SouMR (Southern Main Road (Couva)) | ttomr.tto.soumr | 0.00 | 18.29 | 0.00% |
| 4 | SouMR (Southern Main Road (Point Fortin)) | ttomr.tto.soumrpoi | 0.00 | 19.71 | 0.00% |
| 4 | SouMR (Southern Main Road (Fullerton)) | ttomr.tto.soumrful | 0.00 | 13.50 | 0.00% |
| 4 | SouTruRd (Southern Trunk Road) | ttomr.tto.soutrurd | 0.00 | 8.66 | 0.00% |
| 4 | TocoMR (Toco Main Road) | ttomr.tto.tocomr | 0.00 | 24.62 | 0.00% |
| 4 | ValMR (Valencia Main Road) | ttomr.tto.valmr | 0.00 | 7.41 | 0.00% |
| 4 | WesMR (Western Main Road) | ttomr.tto.wesmr | 0.00 | 9.18 | 0.00% |