# Four areas of transportation research

Iowa Department of Transportation Video 31608 Four areas of transportation research Highlights of four projects by the Iowa Department of Transportation, Research and Technology Bureau: 1) Precast Bridge Approach (Pavements), 2) Teen Driver (Safety), 3) Winter Maintenance, and 4) Structural Health Monitoring (Bridges and structures).

- Kind: Educational
- Year: 2009
- By: Iowa Department of Transportation
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.bts.31608)
- Licence or status: [CC0 1.0](http://creativecommons.org/publicdomain/zero/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/gov.bts.31608?play=1)