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  2. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    In the United States, the maximum grade for federally funded highways is specified in a design table based on terrain and design speeds, [7] with up to 6% generally allowed in mountainous areas and hilly urban areas with exceptions for up to 7% grades on mountainous roads with speed limits below 60 mph (95 km/h).

  3. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    Maximum grade: The maximum permissible vertical angle, or grade, along the highway is determined from terrain and design speed, [4] with up to 6% generally allowed in mountainous areas, 5% in rolling terrain, and 4% on level terrain. An additional 1% is allowed in urban areas.

  4. List of gaps in Interstate Highways - Wikipedia

    en.wikipedia.org/wiki/List_of_gaps_in_Interstate...

    I-81 connects to I-76 via US 11 at-grade roads in Carlisle, Pennsylvania. The Massachusetts Turnpike ( I-90 ) passes over I-391 without interchange in Chicopee, Massachusetts . The overpass is about one mile (1.6 km) north of the I-391 southern terminus at I-91 , and approximately 1.4 miles (2.3 km) from the Mass Pike interchange with I-91 and ...

  5. Road signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_the_United...

    The 11th edition of the MUTCD was released on December 19, 2023. [1] The effective date, 30 days after publication, of the MUTCD was January 18, 2024.

  6. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    Geometric design also affects an emerging fifth objective called "livability", which is defined as designing roads to foster broader community goals, including providing access to employment, schools, businesses and residences, accommodate a range of travel modes such as walking, bicycling, transit, and automobiles, and minimizing fuel use ...

  7. Controlled-access highway - Wikipedia

    en.wikipedia.org/wiki/Controlled-access_highway

    According to road traffic laws of Vietnam, an expressway is a road for motor vehicles, with a divider separating opposing traffic directions, no at-grade crossings with intersecting roads, fully equipped facilities to ensure continuous traffic flow, safety and short journey times, and access allowed only at interchanges.

  8. ‘Thanks Ron’: Satanic Temple to take advantage of new Florida ...

    www.aol.com/thanks-ron-satanic-temple-advantage...

    As of Monday, Florida school districts may allow volunteer chaplains to administer to students. Enter The Satanic Temple.

  9. List of steepest gradients on adhesion railways - Wikipedia

    en.wikipedia.org/wiki/List_of_steepest_gradients...

    Balsam Mountain Grade, Balsam N.C. Balsam Mountain, home of highest railroad station east of the Rockies; average grade about 4.0%, max 4.5%. 1 of 2 grades on southern railways former Murphy branch that are +4% grade. Balsam Mountain has seen many runaways. It is still in service operated by the Blue Ridge Southern Railroad . 1 in 22 (4.5%)