HomeMy WebLinkAbout0602 - Median TaperL=LENGTH OF TAPER
Y-2.25W(X)2 W=MAXIMUM OFFSET DISTANCE
L X=DISTANCE ALONG BASE LINE
Y=OFFSET FROM BASE LINE
L, ft
DISTANCE X, L 12 INCREMENTS,
ft
60'
5'
10'
15'
20'
25'
30'
35'
40'
45'
50'
55'
60'
72'
6'
12'
18'
24'
30'
36'
42'
48'
54'
60'
66'
72'
90'
7.5'
15'
22.5'
30'
37.5'
45'
52.5'
60'
67.5'
75'
82.5'
90'
120'
10'
20'
30'
40'
50'
60'
70'
80'
90'
100'
110'
120'
150'
12.5'
25'
37.5'
50'
62.5'
75'
87.5'
100'
112.5'
125'
137.5'
150'
W, ft
OFFSET Y, ft
10'
0.16'
0.62'
1.41'
2.50'
3.75'
5.00'
6.25'
7.50'
8.59'
9.38'
9.84'
10.00'
11'
0.17'
0.69'
1.55'
2.75'
4.13'
5.50'
6.88'
8.25'
9.45'
10.31'
10.83'
11.00,
12'
0.19'
0.75'
1.69'
3.00'
4.50'
6.00'
7.50'
9.00'
10.31'
11.25'
11.81'
12.00'
19,
0.30'
1.19'
2.67'
4.75'
7.13'
9.50'
11.88'
14.25'
16.33'
17.81'
18.70'
19.00,
20'
0.31'
1.25'
2.81'
5.00'
7.50'
10.00'
12.50'
15.00'
17.19'
18.75'
19.69,
20.00'
21'
0.33'
1.31'
2.95'
5.25'
7.88'
10.50'
13.13'
15.75'
18.05'
19.69'
20.67'
21.00'
22'
0.34'
1.38'
3.09'
5.50'
8.25'
11.00'
13.75'
16.50'
18.91'
20.62'
21.66'
22.00'
NOTE: 2
TO DETERMINE OFFSET DISTANCE FOR ANY LENGTH OF TAPER USE THE FORMULA Y=2.25W(L) FOR THE
PORTIONS A-B' AND C-D' WHICH ARE PARABOLIC CURVES. THE PORTION B'C' IS A TANGENT. WHEN THE BASE
LINE IS CURVED, THE OFFSETS ARE APPLIED TO THE CURVED BASE LINE, AND B'C' IS NO LONGER A TANGENT.
N.T.S.
CITY OF PALM DESERT APPROVED BY:
DEPARTMENT OF PUBLIC WORKS STD NO.
Feb 19, 2025 MEDIAN TAPER 602
MARTIN ALVAREZ DATE
PUBLIC WORKS DIRECTOR