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STATE SIGNALIZED ARTERIALS
FREEWAYS
Lanes Median
B
C
D
E
Lanes
B
C
D
E
2 4 6
Undivided
* * *
12,900 14,200 29,300 30,400 45,200 45,800
** ** **
4 6 8
34,800 48,900 62,900
48,000 69,000 90,400
56,700 82,600 108,400
63,200 94,800 126,400
Divided Divided
Non-State Signalized Roadway Adjustments
Freeway Adjustments Auxiliary Lanes Present in Both Directions + 20,000
(Alter corresponding state volumes by the indicated percent.) Non-State Signalized Roadways - 10%
Median & Turn Lane Adjustments
UNINTERRUPTED FLOW HIGHWAYS Rural Undeveloped
Exclusive Left Lanes
Exclusive
Adjustment
Lanes Median
Right Lanes
Factors
2 2
Divided
Yes
No No No No
+5% -20%
Lanes Median
B
C
D
E
Undivided
No
2 4 6
Undivided
4,600
8,600
14,000 28,500 55,700 62,700 83,500 94,200
Multi Undivided Multi Undivided
Yes
-5%
Divided Divided
31,200 46,800
44,900 67,600
No
-25% + 5%
Yes
Developed Areas
One-Way Facility Adjustment Multiply the corresponding two-directional volumes in this table by 0.6
Lanes Median
B
C
D
E
2 4 6
Undivided 10,300
15,700 42,300 63,600
21,300 28,500 54,000 61,600 81,200 92,400
Divided Divided
29,300 44,000
Passing Lane Adjustments Alter LOS B-D volumes in proportion to the passing lane length to the highway segment length
BICYCLE MODE 2 (Multiply vehicle volumes shown below by number of directional roadway lanes to determine two-way maximum service volumes.)
Uninterrupted Flow Highway Adjustments
Lanes
Median Divided
Exclusive left lanes
Adjustment factors
2
Yes Yes
+5% -5% -25%
Rural Undeveloped
Multi Undivided Multi Undivided
Paved Shoulder/Bicycle Lane Coverage
No
B
C
D
E
0-49% 50-84% 85-100%
*
1,300 2,100 3,900
2,000 3,200
3,200
1 Values shown are presented as two-way annual average daily volumes for levels of service and are for the automobile/truck modes unless specifically stated. This table does not constitute a standard and should be used only for general planning applications. The computer models from which this table is derived should be used for more specific planning applications. The table and deriving computer models should not be used for corridor or intersection design, where more refined techniques exist. Calculations are based on planning applications of the HCM and the Transit Capacity and Quality of Service Manual. 2 Level of service for the bicycle and pedestrian modes in this table is based on number of vehicles, not number of bicyclists or pedestrians using the facility.
1,000 2,600
10,600
18,500 >18,500
Developed Areas
Paved Shoulder/Bicycle Lane Coverage
B
C
D
E
0-49% 50-84% 85-100%
*
2,300 4,500
4,900
15,600 18,500
* Cannot be achieved using table input value defaults.
1,700
13,300
5,900 18,500 >18,500
**
** Not applicable for that level of service letter grade. For the automobile mode, volumes greater than level of service D become F because intersection capacities have been reached. For the bicycle mode, the level of service letter grade (including F) is not achievable because there is no maximum vehicle volume threshold using table input value defaults.
PEDESTRIAN MODE 2 (Multiply vehicle volumes shown below by number of directional roadway lanes to determine two-way maximum service volumes.) Sidewalk Coverage B C D E 0-49% * * 2,700 9,200 50-84% * 1,500 8,400 14,900 85-100% 3,600 10,200 16,700 >19,200
Source: Florida Department of Transportation Systems Implementation Office https://www.fdot.gov/planning/systems/
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QUALITY/LEVEL OF SERVICE HANDBOOK
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