Volume of Traffic on the Primary Road System
| 
                 Route  | 
            2006  | 
            
                 Rural/Municipal  | 
            
            Section length (miles) | Annual average daily traffic | 
                 
                    Vehicle classification distribution  | 
            Average daily vehicle miles | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
                 Motorcylces  | 
            Cars, vans and pickups | Total trucks and buses | Single unit trucks  | 
            Combination trucks  | 
            All vehicles | Trucks and buses | |||||||||||
| Primary route section description  | 
        |||||||||||||||||
| 
                 Buses  | 
            
                 2Axles  | 
            
                 3Axles  | 
            4 or more axles | 4 or less axles | 
                 5Axles  | 
            6 or more axles | Multiple trailers | ||||||||||
| 30 | 37 Greene COUNTY | ||||||||||||||||
| 30 | NORTH LIMITS OF RALSTON | Rural | 0.391 | 3440 | 28 | 2765 | 647 | 27 | 130 | 52 | 6 | 124 | 278 | 20 | 9 | 1345 | 253 | 
| 30 | EAST LIMITS OF RALSTON | Municipal | 1.068 | 3350 | 28 | 2693 | 629 | 27 | 125 | 50 | 6 | 121 | 271 | 20 | 9 | 3578 | 672 | 
| 30 | JUNCTION IA 25 & CO RD N65 | Rural | 3.052 | 3440 | 28 | 2765 | 647 | 27 | 130 | 52 | 6 | 124 | 278 | 20 | 9 | 10499 | 1975 | 
| 30 | INTERSECTION CO RD P14 | Rural | 4.946 | 3290 | 27 | 2652 | 610 | 21 | 99 | 40 | 5 | 128 | 287 | 21 | 10 | 16272 | 3017 | 
| 30 | WEST LIMITS OF JEFFERSON * | Rural | 2.974 | 3390 | 28 | 2751 | 610 | 21 | 99 | 40 | 5 | 128 | 287 | 21 | 10 | 10082 | 1814 | 
| 30 | INTERSECTION IA 4 | Municipal | 1.023 | 3740 | 32 | 3114 | 594 | 20 | 96 | 39 | 5 | 125 | 280 | 20 | 10 | 3826 | 608 | 
| 30 | INTERSECTION MULBERRY STREET | Municipal | 0.505 | 3940 | 34 | 3299 | 607 | 23 | 111 | 44 | 5 | 122 | 272 | 20 | 9 | 1990 | 307 | 
| 30 | EAST LIMITS OF JEFFERSON | Municipal | 0.499 | 3670 | 31 | 3031 | 607 | 23 | 111 | 44 | 5 | 122 | 272 | 20 | 9 | 1831 | 303 | 
| 30 | WEST LIMITS OF GRAND JUNCTION | Rural | 5.973 | 3770 | 32 | 3114 | 624 | 24 | 115 | 46 | 5 | 125 | 280 | 20 | 10 | 22518 | 3727 | 
| 30 | INTERSECTION IA 144 | Municipal | 0.086 | 3670 | 31 | 3031 | 607 | 23 | 111 | 44 | 5 | 122 | 272 | 20 | 9 | 316 | 52 | 
| 30 | EAST LIMITS OF GRAND JUNCTION | Municipal | 0.657 | 3610 | 32 | 3081 | 497 | 21 | 98 | 39 | 5 | 96 | 215 | 16 | 7 | 2372 | 327 | 
| 30 | INTERSECTION CO RD P46 | Rural | 1.333 | 3710 | 33 | 3165 | 512 | 22 | 102 | 41 | 5 | 99 | 221 | 16 | 8 | 4945 | 682 | 
| 30 | WEST LINE OF BOONE COUNTY | Rural | 2.003 | 3800 | 34 | 3254 | 512 | 22 | 102 | 41 | 5 | 99 | 221 | 16 | 8 | 7611 | 1026 | 
| ROUTE SUMMARY - RURAL | 20.672 | 3545 | 73272 | 12494 | |||||||||||||
| ROUTE SUMMARY - MUNICIPAL | 3.838 | 3625 | 13913 | 2269 | |||||||||||||