Type of Street
|
Minimum Radius of Arc at Intersection of Pavement Edge
or Curbline
(feet)
| |
---|---|---|
Any street within an industrial district or that provides truck
access to an industrial district
|
55
| |
At least one arterial street, other than above
|
40
| |
At least one collector street, but no arterial street, other
than above
|
35
| |
Local streets, other than above
|
25
|
Table 10.1
Design Standards for Streets
(all dimensions in feet unless specified)
| |||||
---|---|---|---|---|---|
Type of Street
| |||||
Design Specifications
|
Arterial
|
Collector
|
Local
| ||
Right-of-way width
|
80
|
60
|
50
| ||
Cartway width:
| |||||
With curbs on both sides and no on-street parking
|
32
|
32
|
N/A
| ||
With curbs on both sides and on-street parking on 1 side
|
32
|
32
|
32
| ||
With curbs on both sides and on-street parking on 2 sides
|
N/A
|
N/A
|
32
| ||
Plus acceleration/deceleration lane width (where determined
to be needed by the Board of Supervisors or PennDOT)
|
11
|
11
|
N/A
| ||
Minimum tangent between reverse curves, measured along the street
center line.
|
200
|
100
|
100
| ||
Minimum center line radii for horizontal curves
|
500*
|
300
|
200
| ||
Maximum grade**
|
6%
|
8%
|
10%
| ||
Minimum grade
|
1.0%
|
1.0%
|
1.0%
|
NOTES:
|
Minimum sight distances shall be required as provided in § 113-53G.
| |
*
|
Larger radii may be required as determined to be needed by the
Township Engineer or PennDOT. The Township may approve reduced horizontal
curve requirements if the applicant proves that the curve would not
typically cause vehicles to cross the center line and if such reduction
is proven to be necessary because of the unique conditions of the
property.
| |
**
|
Up to 400 feet of length of a local street may have a maximum
grade of 12% if the Township determines a less-steep grade is not
feasible.
|
Table 10.2
Required Sight Distance Table
(distance in feet)
| |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Speed (V)
(miles per hour)
|
Average Grade (G) Percent
| ||||||||||
Positive Grades
|
0.0
|
+1.0
|
+2.0
|
+3.0
|
+4.0
|
+5.0
|
+6.0
|
+7.0
|
+8.0
|
+9.0
|
+10.0
|
25
|
147
|
145
|
144
|
143
|
142
|
140
|
139
|
138
|
137
|
136
|
135
|
30
|
196
|
194
|
191
|
189
|
187
|
185
|
183
|
182
|
180
|
178
|
177
|
35
|
249
|
245
|
242
|
239
|
236
|
233
|
231
|
228
|
226
|
224
|
221
|
40
|
314
|
309
|
304
|
299
|
295
|
291
|
287
|
284
|
280
|
277
|
274
|
45
|
383
|
376
|
370
|
364
|
358
|
353
|
348
|
343
|
339
|
334
|
330
|
50
|
462
|
453
|
444
|
436
|
429
|
422
|
415
|
409
|
403
|
397
|
392
|
55
|
538
|
527
|
517
|
508
|
499
|
490
|
482
|
475
|
468
|
461
|
454
|
Speed (V)
(miles per hour)
|
Average Grade (G) Percent
| ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Negative Grades
|
0.0
|
-1.0
|
-2.0
|
-3.0
|
-4.0
|
-5.0
|
-6.0
|
-7.0
|
-8.0
|
-9.0
|
-10.0
|
25
|
147
|
148
|
150
|
151
|
153
|
155
|
157
|
159
|
161
|
164
|
166
|
30
|
196
|
199
|
201
|
204
|
207
|
210
|
214
|
217
|
221
|
226
|
230
|
35
|
249
|
252
|
256
|
260
|
265
|
269
|
275
|
280
|
286
|
292
|
299
|
40
|
314
|
319
|
325
|
331
|
338
|
348
|
352
|
360
|
369
|
379
|
389
|
45
|
383
|
390
|
398
|
406
|
415
|
425
|
435
|
447
|
459
|
472
|
487
|
50
|
462
|
471
|
481
|
492
|
504
|
517
|
531
|
546
|
563
|
581
|
600
|
55
|
538
|
550
|
562
|
576
|
590
|
606
|
622
|
641
|
661
|
682
|
706
|
Use/Task
|
Maintained Footcandle
|
Uniformity Ratio
| |||
---|---|---|---|---|---|
[1]
|
Streets, local commercial
|
0.9 avg.
|
6:1 avg:min
| ||
Streets, local residential
|
0.4 avg.
|
4:1 avg:min
| |||
[2]
|
Parking, multifamily residential
| ||||
Low vehicular/pedestrian activity
|
0.2 min.
|
4:1 avg:min*
| |||
Medium vehicular/pedestrian activity
|
0.6 min.
|
4:1 avg:min*
| |||
[3]
|
Parking, industrial/commercial/institutional/municipal
| ||||
High activity, e.g., regional shopping centers/fast-food facilities,
major athletic/civic/cultural events
|
0.9 min.
|
4.1 avg:min*
| |||
Medium activity, e.g., community shopping centers, office parks,
hospitals, commuter lots, cultural/civic/recreational events
|
0.6 min.
|
4:1 avg:min*
| |||
Low activity, e.g., neighborhood shopping, industrial employee
parking, schools, church parking
|
0.2 min.
|
4:1 avg:min*
| |||
[4]
|
Sidewalks, walkways, and bikeways
| ||||
Commercial
|
1.0 avg.
|
5:1 avg:min
| |||
Residential
|
0.5 avg.
|
5:1 avg:min
| |||
[5]
|
Building entrances, commercial, industrial, institutional
|
5.0 avg.
|
—
| ||
[6]
|
Service station pump islands
|
20:0 avg.
|
4:1 avg:min
| ||
[7]
|
Car dealerships
|
20.0 avg.
|
5:1 max:min
|
Notes:
| |||
---|---|---|---|
1.
|
Illumination levels are maintained horizontal footcandles on
the task, e.g., pavement or area surface.
| ||
2.
|
Uniformity ratios dictate that average illuminance values shall
not exceed minimum values by more than the product of the minimum
value and the specified ratio, e.g., for high-activity commercial
parking, the average illuminance shall not exceed 3.6 footcandles
(0.9 x 4).
| ||
*
|
In no case shall the maximum to minimum uniformity ratio for
parking be in excess of 20:1.
|
Acer rubrum - American red maple
| |
Acer saccharum - Sugar maple
| |
Carpinus - Hornbeam
| |
Celtis occidentalis - Common hackberry
| |
Fagus sylvatica - European beech
| |
Fraxinus pennsylvania - Green ash
| |
Fraxinus americana - White ash
| |
Ginko biloba fastigiata - Maiden hair tree (male only)
| |
Gleditsia triacanthos - Thornless locust or honey locust
| |
Liriodendron tulipifera - Tulip poplar
| |
Prunus sargentii - Sargent cherry
| |
Quercus - all varieties of oak
| |
Tilia americana - American linden
| |
Tilia petiolaris - Silver linden
| |
Tilia euchlora - Crimean linden
| |
Tilia cordata - Little leaf linden
| |
Ulmus - hybrids: homestead or sapporo autumn gold
| |
Ulmus parviflora - Chinese or lacebark elm, not including siberian
elm
| |
Zelkova serrata - Zelkova
|
Ilex opaca - American holly
| |
Picea - all varieties of spruce
| |
Pinus - all varieties of pine
| |
Pseudotsuga taxifolia - Douglas fir
|
Percentage of the Total Required Recreation Land that
Would Meet the Definition of Prime Recreation Land
|
Minimum Required Recreation Land Per Permitted Dwelling
Unit
(square feet)
| |
---|---|---|
0% to 25.0%
|
5,200
| |
25.1% to 75.0%
|
2,600
| |
75.1% to 100%
|
1,300
|