2020 FDOT QUALITY/LEVEL OF SERVICE HANDBOOK
STATE SIGNALIZED ARTERIALS
FREEWAYS
Class I (40 mph or higher posted speed limit)
Core Urbanized
C
D
Lanes Median
B
Lanes
B
C
D
E
E
2
Undivided
* * * *
16,800 17,700 37,900 39,800 58,400 59,900 78,800 80,100
4 6 8
47,600 70,100 92,200 115,300 136,500
66,400 97,800 128,900 158,900 192,400
83,200 123,600 164,200 203,600 246,200
87,300 131,200 174,700 218,600 272,900
** ** ** **
4 6 8
Divided Divided Divided
10 12
Class II (35 mph or slower posted speed limit)
Lanes Median
B
C
D
E
Urbanized
2
Undivided
* * * *
7,300 14,800 15,600 14,500 32,400 33,800 23,300 50,000 50,900 32,000 67,300 68,100
Lanes
B
C
D
E
4 6 8
Divided Divided Divided
4 6 8
45,900 68,900 91,900 115,000
62,700 93,900
75,600
85,400 128,100 170,900 213,600
113,600 151,300 189,300
125,200 156,800
10
Non-State Signalized Roadway Adjustments (Alter corresponding state volumes by the indicated percent.) Non-State Signalized Roadways - 10%
Freeway Adjustments
Auxiliary Lanes
Ramp
Present in Both Directions
Metering
+ 20,000
+ 5%
Median & Turn Lane Adjustments
UNINTERRUPTED FLOW HIGHWAYS
Exclusive
Exclusive
Adjustment
Lanes Median
B
C
D
E
Lanes
Median
Left Lanes Right Lanes
Factors
2 4 6
Undivided 11,700
18,000 52,600 78,800
24,200 32,600 66,200 75,300 99,400 113,100
2 2
Divided
Yes
No No No No
+5% -20%
Divided Divided
36,300 54,600
Undivided
No
Multi Undivided Multi Undivided
Yes
-5%
No
-25% + 5%
Yes
Uninterrupted Flow Highway Adjustments
Lanes
Median Divided
Exclusive left lanes
Adjustment factors
One-Way Facility Adjustment Multiply the corresponding two-directional volumes in this table by 0.6
2
Yes Yes
+5% -5% -25%
Multi Undivided Multi Undivided
No
BICYCLE MODE 2
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. 3 Buses per hour shown are only for the peak hour in the single direction of the higher traffic flow.
(Multiply vehicle volumes shown below by number of directional roadway lanes to determine two-way maximum service volumes.) Paved Shoulder/Bicycle Lane Coverage B C D E 0-49% * 2,900 7,600 19,700 50-84% 2,100 6,700 19,700 >19,700 85-100% 9,300 19,700 >19,700 ** 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% * * 2,800 9,500 50-84% * 1,600 8,700 15,800 85-100% 3,800 10,700 17,400 >19,700 BUS MODE (Scheduled Fixed Route) 3 (Buses in peak hour in peak direction) Sidewalk Coverage B C D E 0-84% > 5 4 3 2 85-100% > 4 3 2 1
* Cannot be achieved using table input value defaults.
** 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.
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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