References & Calculations
News Updates ST3 Preliminary Review
- ST1 Promises for 2010 $32,337 * 2 (2014$)/roundtrip rider from Sound Transit Light Rail Extreme Costs chart, Sound Transit Seattle Light Rail Promises vs. Reality, ref. p)
- ST1 Reality in 2015 $182,000 (2014$)/roundtrip rider from Sound Transit Light Rail Extreme Costs chart, Sound Transit Light Rail System Key Facts & Data
- Sound Transit 3 Draft Plan, March 2016, Rail Project projected performance parameters and basic calculations
Costs in 2014$ ref c.)
data from SoundTransit Website |
LRT
Bellevue to Issaquah
|
LRT East Link |
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| LRT
Kent to
Fed
Way |
LRT Fed Way to Tacoma Dome |
LRT Ballard |
LRT West Seattle |
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length [miles] |
Min Daily Riders |
Max Daily Riders |
Min Capitol Costs million 2014$ |
Max Capitol Costs million 2014$ |
Annual O&M [million 2014$] |
Travel time [mins] |
POP PER ACRE (2014) |
EMP PER ACRE (2014) |
headway [mins[ |
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9 |
11,000 |
15,000 |
1,594 |
1,706 |
30 |
25 |
4 |
10 |
6 |
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3.7 |
7,000 |
9,000 |
1,038 |
1,111 |
11 |
8 |
6 |
13 |
6 |
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15.4 |
35,000 |
43,000 |
4,041 |
4,324 |
53 |
31 |
8 |
7 |
3/6 |
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15.0 |
45,000 |
59,000 |
3,505 |
3,751 |
45 |
28 |
4 |
6
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5.3 |
17,000 |
20,000 |
1,080 |
1,156 |
14 |
9.3 |
7 |
3 |
6 |
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9.7 |
28,000 |
39,000 |
2,245 |
2,595 |
31 |
19 |
2 |
5 |
6 |
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7.1 |
114,000 |
145,000 |
4,450 |
4,762 |
38 |
17 |
22 |
71 |
6 |
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4.7 |
31,000 |
36,000 |
1,886 |
2,018 |
22 |
12 |
6 |
15 |
6 |
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7.8 |
1,000 |
1,500 |
293 |
314 |
3 |
11 |
2 |
1 |
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ref d.) Calculations |
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(2014$)
Ave Daily Riders |
Ave Capitol Costs, mi $ |
Ave Capitol Costs/daily rider $ |
Ave O&M costs/rider mil$ |
cost/mile, mil 2014$ |
Capitol Costs/daily roundtrip, $ 1 |
daily roundtrips/ mil$ capitol cost |
Speed [mph] |
pop per sq mile 2014 |
Emp per square mile 2014 |
passengers/mile |
riders/(emp + pop per sq miles) |
|
13,000 |
1,650 |
126,923 |
6.322 |
183.3 |
253,846 |
3.94 |
21.6 |
2,560 |
6,400 |
1,444 |
0.161 |
mar 28 |
|
|
8,000 |
1,075 |
134,313 |
3.767 |
290.4 |
268,625 |
3.72 |
27.8 |
3,840 |
8,320 |
2,162 |
0.178 |
mar 28 |
|
39,000 |
4,183 |
107,244 |
3.723 |
271.6 |
214,487 |
4.66 |
29.8 |
5,120 |
4,480 |
2,532 |
0.264 |
mar 29 |
|
|
52,000 |
3,628 |
69,769 |
2.371 |
241.9 |
139,538 |
7.17 |
32.1 |
2,560 |
2,560 |
3,467 |
0.677 |
mar 28 |
|
|
18,500 |
1,118 |
60,432 |
2.073 |
210.9 |
120,865 |
8.27 |
34.2 |
4,480 |
1,920 |
3,491 |
0.545 |
mar 29 |
|
|
33,500 |
2,420 |
72,239 |
2.535 |
249.5 |
144,478 |
6.92 |
30.6 |
1,280 |
3,200 |
3,454 |
0.771 |
mar 29 |
|
|
129,500 |
4,606 |
35,568 |
0.804 |
648.7 |
71,135 |
14.06 |
25.1 |
14,080 |
45,440 |
18,239 |
0.306 |
mar 29 |
|
33,500 |
1,952 |
58,269 |
1.799 |
415.3 |
116,537 |
8.58 |
23.5 |
3,840 |
9,600 |
7,128 |
0.530 |
mar 29 |
|
1,250 |
304 |
242,800 |
6.575 |
38.9 |
485,600 |
2.06 |
42.5 |
1,280 |
640 |
160 |
0.083 |
mar 28 |
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- capitol cost per daily roundtrip rider = Ave Capitol Costs/(Ave Daily Riders * 2 rides/roundtrip)
- 2 people per acre * 640 acres/sq mile = 1280 pop per sq mile (Dupont 2014)
- 15 buses serve 5,500 rides per day from Bus Rapid Transit When Costs Matter chart, SOUND TRANSIT Claims BRT Duplicating Swift and Costing Much More Would Run Slowert ref, u.
- 5,500 rides/day/15 buses = 367 rides/day per bus,
- BRT vehicles cost $1.2 million, Table 10-4. Estimated Capital Costs, Parsons Brinckerhoff (August 2014). "Executive Summary". Community Transit BRT Corridor Planning and Route Definition Study: Boeing to Canyon Park (Report). Community Transit.”
- ($304 million * 367 rides per day/bus )/ ($1.2 million/bus) / (2 rides/day) = 46,500 daily round trips
- Pierce County current Sound Transit tax share 18%, proposed ST3 spending 12%, Bob Pishue, April 6, 2016, "Some subareas would get a bad deal under new Sound Transit tax plan"
- Community Transit Blog, Swift I, 7 miles of BAT lines, 16.7 milles of signal priority, "Improvements Ahead as Swift Turns 4," November 27, 2013
- ff
Costs in 2014$ ref c.)
data from SoundTransit Website |
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length [miles] |
Min Daily Riders |
Max Daily Riders |
Min Capitol Costs, mi$ |
Max Capitol Costs, mil$ |
Annual O&M, mi$ |
Travel time, mins |
pop per acre 2014 |
emp per acres 2014 |
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37.0 |
11,000 |
13,000 |
687 |
735 |
27 |
87 |
13 |
22 |
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