Rumble Strips: A Sound Investment
Public domainFederal Highway Administration Publication FHWA-SA-07-024 Rumble Strips: A Sound Investment An introduction to the effectiveness and design of shoulder, edge and centerline rumble strips/stripes, all cost-effective treatments proven to reduce crashes caused by distracted or inattentive drivers.
Public domain
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Suggested attribution
Rumble Strips: A Sound Investment. Federal Highway Administration. Internet Archive · FedFlix.
Rumble Strips: A Sound Investment. Federal Highway Administration. Internet Archive · FedFlix.
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