Screenlines in BKR Area

A number of screenlines are drawn north-south or east-west throughout the BKR region (regional) and local jurisdictions (local) to capture traffic volumes through the roadway facilities. The plot and table below depicts the screenline locations.

ScreenLine ID	Screenline Name	Screenline Description
101	North Boundary	S/O Bothell Way (SR-522) & Wd-Duvall Rd (NE 185th St)
102	South Boundary	S/O SE 69th Way & Newcastle-Coal Creek Rd
103	East Boundary	E/O Avondale Rd, 196th Ave NE & W Lk Samm Pkwy
104	West Boundary	Lake Washington Bridge Crossings - SR-520 & I-90
105	EW-1	N/O NE 132nd St
106	EW-2	N/O Central Way, NE 85th St & NE Redmond Wy (SR-908)
107	EW-3	N/O NE 68th St, NE 72nd St, NE 70th St, & NE 51st St
108	EW-4	N/O SR-520 & S/O NE 40th St
109	EW-5-BEL	N/O NE 12th St & Bel-Red Rd
110	EW-6-BEL	S/O NE 8th St & N/O Main St
111	EW-7-BEL	S/O Main St
112	EW-8-BEL	N/O I-90 & Eastgate Way
120	EW-1-RED	S/O NE 83rd St
122	EW-1-BEL:CBD	S/O NE 12th St
123	EW-2-BEL:CBD	S/O NE 8th St
124	EW-3-BEL:CBD	S/O NE 4th St
127	EW-1-BEL	S/O SR-520 & N/O NE 20th St
128	EW-2-BEL	S/O Main St
129	EW-3-BEL	S/O of I-90 & Eastgate
130	EW-4-BEL	N/O SE 60th St
133	NS-4-RED	E/O Woodinville-Redmond Rd (SR-202)
201	1-EW-Redmond	S/O Old Redmond Road
202	3-EW-Redmond	N/O NE 24th Street
203	4-EW-Redmond	S/O NE 24th Street
205	NS-1-RED	W/O W LK Sammamish PkWy
205	6-NS-Redmond	E/O 148th Ave NE
206	7-NS-Redmond	W/O 148th Ave NE
207	NS-1-OV	W/O SR-520
207	8-NS-Redmond	E/O 148th Ave NE
208	NS-2-OV	E/O 156th Ave NE
208	9-NS-Redmond	E/O 156th Ave NE
209	2-EW-Redmond	N/O NE 40th Street
303	East boundary	E/O Avondale Rd, 196th Ave NE & W Lk Samm Pkwy
304	West boundary	Lk WA bridge crossing - SR-520 & I-90
313	NS-1	W/O I-405
314	NS-2	E/O 132nd Ave NE, Richards Rd, 128th Ave SE & CC Pkwy
315	NS-3-BEL	W/O 100th Ave NE
319	NS-2-RED	E/O 160th Ave NE
321	NS-3-RED	W/O Avondale Rd NE & SR-520
325	NS-1-BEL:CBD	E/O Bellevue Way
326	NS-2-BEL:CBD	E/O 108th Ave NE
331	NS-1-BEL	E/O I-405
332	NS-2-BEL	W/O SR-901 & W Lk Sammamish PkWy
401	EW-Kirkland-1	N/O NE 132nd St - Kirkland
402	EW-Kirkland-2	S/O NE 85th St - Kirkland
403	NS-Kirkland-1	W/O I-405 - Kirkland

Validation Templates

Highway and transit validation templates are here (highway) and here (transit). The below sections describe how to update the templates and re-generate summaries for a new model run.

Highway

In the highway validation template ("hwy_validation_Template.xlsx"), update vehicle flows for AM and PM periods in "hwyload_6to9" and "hwyload_1530to1830". The sheets require BKRCast estimated vehicle flows. The data should contain the following fields in the given order: id, i, j, length, type, lanes, vdf, ul1, ul2, @tveh. The remaining four fields (key, flow, capacity, and v/c) are generated automatically. A EMME table named Link_Table with this format can be found from EMME models under Data Tables. Once the vehicle flows for AM and PM periods are updated, the validation summaries will be re-generated in "compare". The table starting at column "AJ" provides a comparison of BKRCast flows and observed counts by screenline. The page also includes a bar chart of comparison by screenline and a scatter plot showing goodness of fit.

Transit

In the transit validation template ("trn_validation_07062017_distbkr.xlsx"), update transit boardings by time periods in the following sheets: bkrcast_6to9, bkrcast_9to1530, bkrcast_1530to1830, and bkrcast_1830to6. The sheets require BKRCast estimated transit boardings by line. The data should contain the following fields in the given order: line, description, mode, mdesc, ca_board_t. The other two fields (line_id and board) are populated automatically. A table named Transit lines table with this format can be found in EMME models under Data Tables. Once updated, the validation summaries in green tabs will be re-generated. The below is a description of different summary tabs in the spreadsheet:

Sheet Name	Description
compare_all	Comparison of all transit lines in the model region
compare_inBKR	Comparison of the transit lines that serve the BKR region only. This includes transit lines that partly serve the outside BKR region as well.
compare_comp_inBKR	Comparison of the transit lines that are completely within the BKR region
compare_outBKR	Comparison of the transit lines that serve the outside BKR region or do not serve the BKR region