1
FREEWAYS
STATE SIGNALIZED ARTERIALS
Lanes
B
C
D
E
Class I (40 mph or higher posted speed limit)
4 6 8
4,420 6,400 8,420 9,960
5,780 8,490
6,890
7,110
Lanes Median
B
C
D
E
10,200 13,530 15,870
10,670 14,240 17,820
2 4 6
Undivided
* * *
1,300 3,060 4,690
1,460 3,200 4,820
** ** **
11,220 13,290
Divided Divided
10
Class II (35 mph or slower posted speed limit)
Freeway Adjustments
Lanes Median
B
C
D
E
Auxiliary Lanes
Ramp
Present in Both Directions
Metering
2 4 6
Undivided
* * *
580 890
1,200 2,590 4,040
1,280 2,850 4,280
+ 1,800
+ 5%
Divided Divided
1,440
Non-State Signalized Roadway Adjustments (Alter corresponding state volumes by the indicated percent.) Non-State Signalized Roadways - 10%
Median & Turn Lane Adjustments
UNINTERRUPTED FLOW HIGHWAYS
Exclusive Left Lanes
Exclusive
Adjustment
Lanes Median
B
C
D
E
Lanes
Median
Right Lanes
Factors
2 4 6
Undivided 1,020
1,560 4,490 6,730
2,110 5,670 8,510
2,840 6,450 9,670
2 2
Divided
Yes
No No No No
+5% -20%
Divided Divided
3,110 4,650
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 BICYCLE MODE 2
2
Yes Yes
+5% -5% -25%
Multi Undivided Multi Undivided
No
1 Values shown are presented as peak hour directional 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% 50-84%
*
140 500
550
1,760
170 670
1,650
>1,760
85-100%
1,760
>1,760
**
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% * * 250 850 50-84% * 150 780 1,410 85-100% 340 950 1,540 >1,760 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/
75
QUALITY/LEVEL OF SERVICE HANDBOOK
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