FSUTMS Comprehensive Modeling Workshop - Cambridge ...

FSUTMS Standards (Cont'd)
Default BPR Speed-Volume Curve
T
n
LOS
EXP
4
⎛
⎜ ⎛
⎞
= −
× + × ⎜
Assigned Volume
T
⎟
n 1 1.0 0. 15
⎜
⎝
⎜
⎟
⎝ Practical Capacity ⎠
⎞
⎟
⎟
⎠
Where:
T n = Adjusted time for iteration n
T n-1 = Time from previous iteration
Assigned Volume = Assigned 24 hour daily volume
Practical Capacity = Hourly capacity at specific level of service based on application of
UROAD factors.
FSUTMS--CUBE MODELING TRAINING SERIES
15
FSUTMS Standards (Cont'd)
► Highway Assignment Input Files
Data
Highway network ~ UNLOADED_ayy.net
Vehicle trip tables ~ HWYTRIPS_ayy.mat
Turn penalties/prohibitors ~ TURN_yya.pen
Toll links (for toll roads) ~ TOLLLINK_yya.dat*
BPR curves, CONFAC, and UROAD factors ~ VFACTORS.csv*
Models
Equilibrium Highway Assignment
*These data are placed on the network during the
network step of the model.
FSUTMS--CUBE MODELING TRAINING SERIES
16
9-8