Hello, this is a plan I came up with for a potential series of future rail expansions for the region. I have also included potential infill stations and changes to station and line names to simplify the system. The plan includes Link Light Rail, the Seattle streetcar, and Sounder Commuter Rail.
Here is the link to the plan map.
Below are overviews of each extension or alteration by line:
Existing/Planned Light Rail Lines
Link Red Line
-Renamed to Line 1 for simplicity and because color names are different in different languages and number symbols are not
-Extended southwest to Renton via White Center and Burien
-Future Alaska Junction station moved underground to facilitate a gentler curve south towards White Center
-International District/Chinatown renamed to Union Station to simplify the multiple different names for the King Street/International District/Chinatown hub, new unified concourse built in Union Station building (presently Sound Transit headquarters)
-University Street station renamed to Benaroya Hall to avoid confusion with University of Washington, University Village, and U District stations
-Infill station added at Maple Leaf
-Future 130th Street station renamed to Haller Lake
-Future Shoreline South/145th station renamed to Jackson Park
-Future Shoreline North/185th station renamed to Shoreline
-Future Lynnwood City Center station renamed to Lynnwood for simplification
-Future West Alderwood station renamed to Alderwood to align with mall name and for simplification
-Future Ash Way station renamed to Martha Lake because neighborhood names are more specific than street names
-Future SR 99/Airport Road station renamed to Lake Stickney because neighborhood names are more specific than street names
-Future SW Everett Industrial Center renamed to Paine Field for simplification and because it is known to residents by this name
-Future SR 526/Evergreen station renamed to Evergreen
-Infill station added at Lowell
-Future Everett station renamed to Everett Junction to avoid confusion with Downtown Everett
-Extended to North Everett via Downtown Everett
Link Blue Line
-Renamed to Line 2
-Future SE Redmond station renamed to Marymoor Park because it is more specific
-Infill station added at North Overlake to serve northern edge of tech center
-Future Redmond Technology Center station renamed to Tech Center for simplicity
-Future Bel-Red/130th station renamed to Bel-Red for simplicity
-Future Spring District/120th station renamed to Spring District for simplicity
-International District/Chinatown renamed to Union Station to simplify the multiple different names for the King Street/International District/Chinatown hub, new unified concourse built in Union Station building (presently Sound Transit headquarters)
-University Street station renamed to Benaroya Hall to avoid confusion with University of Washington, University Village, and U District stations
-Extended to South Kirkland via SR 520 bridge and Medina
Link Green Line
-Renamed to Line 3 for simplicity and because color names are different in different languages and number symbols are not
-Extended to Tacoma Dome
-Future S 272nd station renamed to Star Lake because neighborhood names are more specific than street names
-Future Kent/Des Moines station renamed to Des Moines for simplicity and to avoid confusion with Kent sounder station
-Tukwila International Boulevard station renamed to International Boulevard for simplicity and to avoid confusion with Tukwila station
-Future S Boeing Access Road station renamed to Duwamish for simplicity and because neighborhood names are more specific than street names, connection can be made to Sounder here
-Future Graham and Othello stations renamed to Graham Street and Othello Street to keep in line with the precedent of using full road names (ex. International Boulevard) and to avoid confusion with neighborhood names
-Inclined elevator added to future Midtown station to connect to First Hill
-Extended to Maltby via Crown Hill, Northgate, Lake City, and Woodinville
Link Purple Line
-Renamed to Line 4 for simplicity and because color names are different in different languages and number symbols are not
-Extended to Downtown Issaquah
-Future Issaquah station renamed to North Issaquah to avoid confusion with Downtown Issaquah
-Infill station added at Phantom Lake
-Future Richards Road station renamed to Factoria because neighborhood names are more specific than street names
-Infill station added at Northup
-Extended to Woodinville via Kirkland and Totem Lake (Tunnel used under Downtown Kirkland to avoid community opposition and because there is no available surface right of way) (I-405 median used between Kirkland and Totem Lake to avoid community opposition and because it is more direct)
Tacoma Link
-Renamed to Line 6 for simplicity, because color names are different in different languages and number symbols are not, and because 2 lines would exist in Tacoma under this plan
-Union Station station renamed to UW Tacoma to avoid conflict with Union Station station in Seattle
-Future S 4th station renamed to 4th Street to keep in line with the precedent of using full road names (ex. International Boulevard)
-Tacoma Dome station moved onto elevated guideway next to future Line 3 station for easier transfers and greater capacity
-Future Hilltop station renamed to Sewell Park to avoid conflict with Hilltop District station
-Future Sprague station renamed to Sprague Avenue to keep in line with the precedent of using full road names (ex. International Boulevard) and to avoid confusion with neighborhood names
-Future Union station renamed to Allenmore because neighborhood names are more specific than street names
-Future Stevens station renamed to Snake Lake because neighborhood names are more specific than street names
-Future Pearl station renamed to Fircrest because neighborhood names are more specific than street names
-Future Tacoma Community College station moved into private right-of-way off-street
Proposed Light Rail Lines
Line 5 (Yellow)
-New line from Mount Baker to Ballard via the Central District, Montlake, UW, and Fremont
Line 7 (Pink)
-New line from Spanaway to Point Defiance via Downtown Tacoma and Ruston
Existing Sounder Commuter Rail Lines
South Line
-Renamed to Line S1 for simplicity and because cardinal directions have different names in different languages and number symbols do not
-Electrified
-Frequency increased to 15 minutes
-Extended to Olympia via Centennial
-Infill station added at Clover Park
-Infill station added at Algona/Pacific
-Infill station added at Duwamish (Boeing Access Road) with connection to Link light rail
-King Street station renamed to Union Station to simplify the multiple different names for the King Street/International District/Chinatown hub, new unified concourse built in Union Station building (presently Sound Transit headquarters)
North Line
-Renamed to Line S2 for simplicity and because cardinal directions have different names in different languages and number symbols do not
-Current rolling stock replaced with DMUs
-Frequency increased to 30 minutes
-Infill station added at Belltown
-Infill station added at Fisherman’s Wharf
-Infill station added at Sunset Hill
-Infill station added at Richmond Beach
-Infill station added at West Everett
–Everett station renamed to Everett Junction to avoid confusion with Downtown Everett
-Extended to Arlington via Marysville
Proposed Sounder Commuter Rail Lines
Line S3
-Peak hours only
-Run by DMUs
-Shuttle service from McMillin to Puyallup
Line S4
-Peak hours only
-Run by DMUs
-Shuttle service from Maple Valley to Auburn via Covington
Line S5
-Peak hours only
-Run by DMUs
-Shuttle service from Monroe to Everett via Snohomish
Proposed Streetcar Changes
Under this proposal, the Seattle Streetcar system would be vastly expanded and essentially be turned into a local light rail system for the City of Seattle. Streetcars would have 100% reserved lanes and signal priority. 4 lines would be built (A,B,C, and D).
Line A: From Alki to Magnolia via Downtown Seattle
Line B: From South Park to Fremont via Georgetown, Downtown Seattle, and Queen Anne
Line C: From U District to Capitol Hill via First Hill, Downtown Seattle, South Lake Union, and Eastlake
Line D: From Lower Queen Anne to Madison Park via Denny Triangle (This line would serve as a vital east-west connection downtown between 7 different north-south rail lines-from left to right: A,B,3,C,1,2,5
I hope you enjoyed, and I encourage feedback in the comments.