Validation
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 |
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.
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.
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 |