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Refs & Calcs ST3

References & Calculations
News Updates ST3 Preliminary Review
  1. 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)
  2. 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
  3.   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
     LRT
    Lynnwood
    to Everet
     LRT
    Kent to Tacoma Dome
    LRT
    Kent to 
    Fed
    Way
    LRT Fed Way to Tacoma Dome  LRT Ballard  LRT West Seattle
    Sounder
    Dupont 
     
     
    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[
    9
    11,000
    15,000
    1,594
    1,706
    30
    25
    4
    10
    6
    3.7
    7,000
    9,000
    1,038
    1,111
    11
    8
    6
    13
    6
     
    15.4
    35,000
    43,000
    4,041
    4,324
    53
    31
    8
    7
    3/6
    15.0
    45,000
    59,000
    3,505
    3,751
    45
    28
    4
    6
    5.3
    17,000
    20,000
    1,080
    1,156
    14
    9.3
    7
    3
    6
    9.7
    28,000
    39,000
    2,245
    2,595
    31
    19
    2
    5
    6
    7.1
    114,000
    145,000
    4,450
    4,762
    38
    17
    22
    71
    6
    4.7
    31,000
    36,000
    1,886
    2,018
    22
    12
    6
    15
    6
     
    7.8
    1,000
    1,500
    293
    314
    3
    11
    2
    1
     
     







           


     






     
    ref d.) Calculations                    
     (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
     
                         
                     
     
  4. capitol cost per daily roundtrip rider = Ave Capitol Costs/(Ave Daily Riders * 2 rides/roundtrip)
  5. 2 people per acre * 640 acres/sq mile = 1280 pop per sq mile (Dupont 2014)
  6. 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.
  7. 5,500 rides/day/15 buses = 367 rides/day per bus, 
  8. 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.”
  9. ($304 million * 367 rides per day/bus )/ ($1.2 million/bus) / (2 rides/day) = 46,500 daily round trips
  10. 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"
  11. 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
  12. ff

  1. tbd
  2.  Sound Transit 3 Draft Plan, March 2016, BRT Project projected performance parameters and basic calculations 
 
Costs in 2014$   ref c.)
data from SoundTransit Website  
     
 
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
 
37.0
11,000
13,000
687
735
27
87
13
22
   
       
       
       
       
       
       
  s

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