Generalized Peak Hour Directional Volumes for Florida’s Transitioning and Areas Over 5,000 Not In Urbanized Areas 1
TABLE 8
12/18/12
INTERRUPTED FLOW FACILITIES
UNINTERRUPTED FLOW FACILITIES
STATE SIGNALIZED ARTERIALS
FREEWAYS
Lanes
B
C
D
E
Class I (40 mph or higher posted speed limit)
2 3 4 5
2,200 3,260 4,260 5,300
2,880 4,280 5,680 7,080
3,440 5,100 6,760 8,440
3,580 5,540 7,500 9,440
Lanes Median
B
C
D
E
1 2 3
Undivided
* * *
710
800
** ** **
Divided Divided
1,740 2,670
1,820 2,740
Freeway Adjustments
Class II (35 mph or slower posted speed limit)
Auxiliary Lane
Ramp Metering
Lanes Median
B
C
D
E
1 2 3
Undivided
* * *
330 500 810
680
720
+ 1,000
+ 5%
Divided Divided
1,460 2,280
1,600 2,420
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 Right Lanes
Adjustment Factors
Lanes Median
B
C
D
E
Lanes Median
1 2 3
Undivided
450
850
1,200 3,110 4,660
1,640 3,440 5,170
1 2
Divided
Yes
No No No No
+5% -20%
Divided Divided
1,740 2,610
2,450 3,680
Undivided
No
Multi Undivided Multi Undivided
Yes
-5%
No
-25% + 5%
–
–
–
Yes
Uninterrupted Flow Highway Adjustments
Lanes Median
Exclusive left lanes
Adjustment factors
One-Way Facility Adjustment Multiply the corresponding directional volumes in this table by 1.2
1
Divided
Yes Yes
+5% -5% -25%
Multi Undivided Multi Undivided
No
BICYCLE MODE 2 (Multiply motorized 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% * 140 320 1,000 50-84% 100 280 940 >1,000 85-100% 380 1,000 >1,000 ** PEDESTRIAN MODE 2 (Multiply motorized 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% * * 140 480 50-84% * 80 440 800 85-100% 200 540 880 >1,000 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
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 Highway Capacity Manual 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 motorized 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.
* 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 Planning Office www.dot.state.fl.us/planning/systems/sm/los/default.shtm
2012 FDOT QUALITY/LEVEL OF SERVICE HANDBOOK TABLES
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