FoRRRwd Trading Cards
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General
Legacy ID
21
Federal-aid Reimbursement Eligibility Process
Federal-aid eligibility letters written by FHWA are not required in order for a State DOT to install the device on any road and are not required for the State DOT to receive Federal-aid reimbursement for that device. FHWA issues these letters as a service to the State DOTs. If an interested...
General Information
SafetyEdge℠ is a simple and effective solution to...
Complete Streets Case Studies
Complete Streets implementation aligns with the Safe System Approach (SSA)
Technical Advisories
Shoulder and Edge Line Rumble Strips
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Policies, Guidance, & Research
Where To Install Rumble Strips
Rumble strips solve a systemic highway safety problem (i.e., the target crash type are present on most roadways), so installing rumble strips on all paved roads offers potential safety benefit to motorists. Agencies typically focus on installing rumble...
Frequently Asked Questions
Definitions:
A center line rumble strip is a longitudinal safety feature installed at or near the center line of a paved roadway. It is made of a series of milled or raised elements intended to alert inattentive drivers (through vibration and sound...
PAVEMENT AND MAINTENANCE
Keeping the Rumble in the Strips
Rumble strips are effective because the noise and vibration produced alerts drivers that they have left the traveled way. As a result, it is important to keep rumble strips operating properly. While milled rumble strips typically do not require...
Mitigating Noise
The unusual noise tires make as they cross over rumble strips keeps drivers alive–but it may also keep neighbors awake. To fulfill their purpose, rumble strips must make enough noise inside the vehicle and tires must drop into the rumble to cause enough vibration to get the driver's attention....
Accommodating All Users
Safe accommodation of all road users can be considered when designing and applying rumble strips. Rumble strips are primarily a safety device for passenger vehicles. For other road users, particularly bicyclists, they may cause concerns. A part of the success in accommodating the variety of road...