| Technique | User counts | Demographics | Multiple trail points | Other Data | Cost | Detects individual users | Other issues |
| Manual counts2 | high accuracy | yes | yes1 | -- | $$$ | yes | labor intensive |
| Self-registration books | depends | yes | yes1 | variety | $ | yes | unreliable |
| Video observations with software | medium accuracy | yes | yes1 | -- | $$$ | yes | privacy concerns |
| Self-selected global positioning system | depends | no | yes | time, direction, speed, elevation | $$ | yes | unreliable |
| Geo-tagged social media with software | medium accuracy | -- | no | seasonal trends | $ | no | -- |
| Pressure/2 Seismic sensors | unknown accuracy | no | yes1 | -- | $$ | no | -- |
| Infra-red2 sensors | high accuracy | no | yes1 | -- | $$ | no | -- |
| Low-energy Bluetooth sensors | low accuracy | no | yes1 | travel time, origin/ destination | $$ | yes | topography impacts accuracy |
| Inductive loops | high accuracy | no | no |
| $$ | yes (vehicles) | accuracy depends on vehicle usage. contained parking |