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City of Frisco Engineering Standards

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<strong>Engineering</strong> <strong>Standards</strong><br />

The ROW width for a Type B thoroughfare that intersects with a pair <strong>of</strong> highway frontage<br />

roads shall be one hundred twenty feet (120’) for a distance <strong>of</strong> three hundred feet (300’) and<br />

then taper at a 15:1 ratio to the standard ROW width to allow build-out <strong>of</strong> the intersection.<br />

See Figures 2.4 and 2.5.<br />

Type A Thoroughfare<br />

300' 300' with<br />

a 15:1 Taper<br />

12' Pkwy<br />

12' Pkwy<br />

Frontage Road<br />

160' ROW<br />

Extended Left-Turn Lane<br />

Extended Left-Turn Lane<br />

23' Pkwy<br />

120' ROW<br />

12' Pkwy<br />

300' 300' with<br />

a 15:1 Taper<br />

FIGURE 2.4: Type A Thoroughfare Intersection with Frontage Road<br />

Type B Thoroughfare<br />

14' Pkwy<br />

300'<br />

225' with<br />

a 15:1 Taper<br />

12' Pkwy<br />

Frontage Road<br />

120' ROW<br />

Extended Left-Turn Lane<br />

23' Pkwy<br />

90' ROW<br />

12' Pkwy<br />

300' 225' with<br />

a 15:1 Taper<br />

FIGURE 2.5: Type B Thoroughfare Intersection with Frontage Road<br />

Section 2 – Thoroughfare Design Requirements May 2012 Page 2-13

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