Laserfiche WebLink
- - <br />47 <br />TAR LE 5-2 <br />LA PORTE STREET SYSTEM HORIZONTAL GEOMETRIC DESIGN STANDARDS • <br />STANDARD MAJOR OTHER LOCAL <br />(Minimum unless noted THOROUGHFARES THOROUGHFARES STREETS ALLEYS <br />Maximum block 2000 1800 1400 NA <br />1 eng th ( feet ) <br />CURVES <br />Centerline curve 2000 800 <br />raduis (feet) 400 (1) <br />Tangent between 100 100 <br />Reverse curves ( feet) <br /> INTERSECTIONS <br />Tangent length approach- 100 70 <br />ing intersections <br />Offset distance (feet) 200 150 <br />Intersecting streets 90 +- 5 90 +- 5 <br />angle of intersection <br />(degrees) <br />Curve radius at normal 25 20 <br />intersection (feet) <br />Curve radius at acute 30 25 <br />angle intersection (feet) <br />DEAD END STREETS AND A LLEYS <br />Maximum length Not permitted Not permitted <br />Cul-de-sac radius <br />(feet) NA NA <br />300 200 <br />50 30 <br />50 30 <br />125 100 <br />90 +- 10 90 +- 15 <br />• <br />20 15 <br />25 20 <br />600 300 <br />40 N/A <br />NOTES <br />(1) Collector Streets <br />(2) Dead end alleys are not permitted <br />t <br />