Appendix A
LEGEND OF VARIABLES USED IN THE ROADWAY LEVEL OF SERVICE REPORT
The following legend provides a definition or description for each variable in the Roadway Level of Service Report . In this legend, each variable is given a number.
1
2 3 4 5 6 7
8
9
10
11
PM Pk Hr Dir Cap
Road Type
Spd Lmt
LOS Std.
Len (mi)
PM Pk Hr Dir Vol
Roadway (From/To)
FC
AADT
Daily Cap
LOS
131ST AVE: (NEBRASKA AVE -to-30TH ST)
C
2U
45
E
1.54
7,243
15,485
512
808
C
may be weighted according to the length of each individual link and may not match a specific count. Note that 2002 counts on the State Highway System (SHS) were not available at the time this report was produced and, therefore, the AADT on the SHS are produced using historical counts and growth rates. Daily Cap (Daily Capacity): The Daily Cap is the maximum rate of flow at which vehicles can traverse a point or uniform segment roadway and maintain the performance standard as measured by speed for interrupted flow facilities and V/C ratio for uninterrupted flow facilities during the daily (AADT) period.
1
Roadway (From/To): The common name assigned to the road segment (street name), the crossing street or location at which the segment begins, and the crossing street or location at which the segment ends. The assignment of roads into systems according to the character of service they provide in relation to the total road network. The abbreviations used for the FC are: PA – Principal Arterial MA – Minor Arterial MAC – Rural Major Collector C – Collector MIC – Rural Minor Collector FC (Functional Classification): Road Type (Existing Road System/Type): Existing number of lanes and whether the facility type is Divided (D), Undivided (U), One Way (O), or Freeway (F).
2
8
9
3
PM Pk Hr Dir Vol (PM Peak Hour Directional Volume): The 100th highest hour traffic volume determined by (AADT x K 100 x Directional Factor). 10 PM Pk Hr Dir Cap (PM Peak Hour Directional Maximum Service Volume): The Pk Hr Dir MSV is the maximum rate of flow at which vehicles can traverse a point or uniform segment roadway and maintain the performance standard as measured by speed for interrupted flow facilities and V/C ratio for uninterrupted flow facilities during the peak hour period for the peak direction. 11 LOS (Level of Service): Current LOS for the roadway.
4
Spd Lmt (Speed Limit): currently posted for the roadway.
Speed limit
5
LOS Std (Level of Service (LOS) Standard): The LOS Std for the particular roadway as adopted and documented in the jurisdiction's Comprehensive Plan. See Appendix C - Level of Service (LOS) Standards.
6
Len (mi):
The Length of the roadway
segment specified in miles.
7
AADT (Annual Average Daily Traffic): The AADT is the number of vehicles that travel on a specified segment of a road on an average day. For aggregated segments, traffic counts
2004 Roadway LOS Report
A-1
September 2004
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