Fourth Plain Bl. / NE 121st Av.
Use the tabs below to select various information provided for this intersection. The first tab offers a map of the intersection location, and a means of locating nearby count locations. Data for each intersection is offered by “leg” which is, at times , not entirely intuitive. Waving your mouse over the names above should clear up any ambiguities.
Directional Average Weekday (24 hour average), AM Peak Hour (7-8 a.m.), PM Peak Hour (peak hour between 4-6 p.m.), and PM Peak Turn Movement (right, left, and through), are included in the summary.
The final tab provides scanned PDF documents (where available) of the original count data for this intersection.
Aerial Map
If you enable JavaScript, you will see an aerial view of this intersection here.
North Leg Traffic Counts (NE 121st Av. )
Year
NB ADT
SB ADT
ADT
NB PM
SB PM
NB AM
SB AM
2021 4250 3512 7762 419 314 245 250
2015 3569 4375 7944 396 374 169 159
2011 4239 4061 8300 345 349 151 167
2000 2629 2590 5219 223 227 138 141
1996 0 0 0 0 0 0 0
1993 2251 1241 3492 257 125 66 21
1992 997 1482 2479 132 135 27 34
1991 1084 977 2061 133 98 26 14
1990 1946 1985 3930 223 230 48 20
1988 0 0 0 0 0 0 0
1987 0 0 0 98 102 0 0
1986 0 0 0 0 0 0 0
1982 0 0 0 0 0 0 0
South Leg Traffic Counts (NE 121st Av. )
Year
NB ADT
SB ADT
ADT
NB PM
SB PM
NB AM
SB AM
2021 4718 5371 10089 452 438 307 326
2015 4689 5282 9971 478 515 342 312
2011 4197 4945 9143 397 415 261 285
2000 3555 4007 7562 324 357 235 214
1996 2562 2916 5478 224 279 152 148
1993 1337 2067 3404 99 161 53 108
1992 1112 1460 2572 100 151 58 74
1991 1189 1553 2742 98 143 83 92
1990 1331 1541 2872 110 145 70 73
1988 735 1402 2137 259 134 0 0
1987 0 0 0 105 144 0 0
1986 0 0 2226 0 0 0 0
1982 0 0 720 0 0 0 0
Year
EB ADT
WB ADT
ADT
EB PM
WB PM
EB AM
WB AM
2021 17394 15129 32523 1451 868 844 1032
2015 15120 15214 30334 1379 970 480 1113
2011 17684 17640 35324 1764 1164 599 1443
2000 18638 19269 37907 1909 1178 642 1639
1996 16286 16723 33010 1862 1110 494 1563
1993 0 16590 0 0 1120 0 1466
1992 11818 11825 23642 1487 925 395 1207
1991 11407 11452 22859 1397 887 413 1194
1990 11252 12114 23366 1340 915 370 1170
1988 0 0 0 0 0 0 0
1987 0 0 0 1151 722 0 0
1986 0 0 0 0 0 0 0
1982 0 0 0 0 0 0 0
Year
EB ADT
WB ADT
ADT
EB PM
WB PM
EB AM
WB AM
2021 19592 19895 39487 1486 1315 1047 1509
2015 17467 16046 33513 1367 1115 879 1212
2011 16572 16301 32873 1220 1040 670 1142
2000 0 0 0 0 0 0 0
1996 18276 17795 36071 2060 1164 569 1604
1993 0 0 0 0 0 0 0
1992 12027 11790 23816 1501 906 421 1136
1991 0 0 0 0 0 0 0
1990 13210 11827 25036 1470 878 750 1160
1988 10653 10733 21386 1151 921 0 0
1987 0 0 0 1157 693 0 0
1986 0 0 0 0 0 0 0
1982 0 0 0 0 0 0 0
Scanned Count Documents (10)
2021: Classification, November (857K PDF)
2015: Classification, September (196K PDF)
2011: Classification, May (84K PDF)
2008: Turn Movement, June, PM (35K PDF)
2008: Turn Movement, June, AM (36K PDF)
2008: Turn Movement, November, PM (47K PDF)
2007: Turn Movement, February, PM (62K PDF)
2007: Turn Movement, February, AM (62K PDF)
2007: Turn Movement, December, PM (47K PDF)
2006: Turn Movement, March, PM (187K PDF)