SwashWare
HCM-CALC

Project Properties

Analyst Roadway Name Analysis Period PM Peak
Analysis Date 8/22/2017 7:29:11 PM From Analysis Module Off-Ramp Segment
Agency To Module Version Date 4/2/2017
Location Analysis Direction HCM Edition HCM2010
User Notes
File Name OffRamp-Example3.xfr

Input Values and Intermediate Calculation Results

Mainline Data
# Lanes Demand (veh/h) Peak Hour Factor Driver Population Factor
4 5900 0.900 1.000

Heavy Vehicle Factor Values
Terrain % Grade Length (mi) % Trucks % RVs Truck PCE RV PCE Heavy Vehicle Factor
Level N/A N/A 10.0 0.0 1.50 1.20 0.952

Free Flow Speed Values
FFS Method Measured
FFS (mi/h) 65.0

Off-Ramp Data

Demand (veh/h) % Trucks % RVs Heavy Vehicle Factor FFS (mi/h)
600 10.00 0.00 0.952 25
Lanes Decel Lane Length, 1 (ft) Decel Lane Length, 2 (ft) Effective Decel Lane Length (ft)
1 260 N/A 260

Analysis Flow Rates
Analysis Flow Rate, Mainline Entrance (pc/h/ln) Analysis Flow Rate, Off-Ramp (pc/h) Analysis Flow Rate, Mainline Exit (pc/h) Prop. Vehicles in Lanes 1 and 2 Flow Rate in Lanes 1 and 2 (pc/h)
6872 700 6172 0.436 3391

Adjacent Ramp Data

Adjacent Ramp Upstream
Type Distance (ft) Demand (veh/h) % Trucks % RVs Heavy Vehicle Factor
OnRamp 1300 400 5.00 0.00 0.976
Analysis Flow Rate (pc/h) Equilibrium Length (ft) Prop. Vehicles in Lanes 1 and 2
455.6 0.0 0.000

Performance Measures and LOS

v/c ratio Avg. Speed, Ramp Influence Area (mi/h) Density, Ramp Influence Area (pc/mi/ln)
0.73 50.7 31.1
Avg. Speed, Overall (mi/h) Density, Overall (pc/mi/ln) LOS
58.4 29.4 D

Service Volumes

A B C D E
Lanes Hourly Volume In Peak Direction
1 430 700 1020 1330 1570
2 1470 2470 3260 ** 4030
3 2040 3680 5260 ** 6040
4 2980 5000 6620 ** 8060
5 2980 5760 8040 ** 10070
Lanes Hourly Volume In Both Directions [D = 0.5]
2 870 1410 2040 2670 3140
4 2950 4940 6530 ** 8060
6 4080 7370 10520 ** 12090
8 5970 10010 13240 ** 16120
10 5970 11530 16080 ** 20150
Lanes Annual Average Daily Traffic [K = 0.1]
2 8700 14100 20400 26700 31400
4 29500 49400 65300 ** 80600
6 40800 73700 105200 ** 120900
8 59700 100100 132400 ** 161200
10 59700 115300 160800 ** 201500
Notes
-- Not applicable for this facility type.
* Cannot be achieved based on input data provided.
** No defined LOS threshold for this LOS level.
*** Service volume the same as for previous LOS level.