WebSection 6C.02 Temporary Traffic Control Zones. Support: 01 A TTC zone is an area of a highway where road user conditions are changed because of a work zone, an incident zone, or a planned special event through the use of TTC devices, uniformed law enforcement officers, or other authorized personnel. 02 A work zone is an area of a highway with ... WebA Static PTSU strategy sets predetermined hours when shoulder lanes are open to vehicles. A Dynamic PTSU strategy responds to real-time traffic conditions when making the determination for opening shoulder lanes to vehicles. A Bus-on-Shoulder strategy opens shoulders to only authorized buses. FHWA Reports and Publications
Small Town and Rural Multimodal Networks - Federal Highway …
WebMar 12, 2024 · Federal Highway Administration 1200 New Jersey Avenue, SE Washington, DC 20590 202-366-4000. About. ... (Single-Unit Truck and Bus AADT) Item 23: Pct_Peak_Single (Percent Peak Single-Unit Trucks and Buses) Item 24: AADT_Combination (Combination Truck AADT) ... Item 37: Shoulder_Type (Shoulder … WebThe FHWA discontinued issuing eligibility letters (an approval of manufacturer’s safety products for use on highways) on December 31, 2015 under NCHRP 350 testing. ... to extend the pavement/shoulder slope to the back of the rail. Measure from the bottom of the straightedge to the top of the rail. 3. If guardrail is located 2 feet off a ... theme rules
Traffic Noise Overview - American Association of State Highway …
WebThe Federal Aid Highway Act of 1970 (23 USC 109 (h)) mandated that the Federal Highway Administration (FHWA) develop noise standards for mitigating highway traffic noise. The law required promulgation of traffic noise-level … WebWhere are Bus-Only Shoulders located? • There are over 250 miles of Bus-Only … microphone brands top