Item #2
Final Version 2.2 Travel Demand
Model Documentation
Part II
Presentation to the
TPB Travel Forecasting Subcommittee
Ron Milone
March 21, 2008
3/21/08 Ver2.2 Presentation to the TFS
TFS_Pres_Ver2.2model_3_21_2008.ppt
1
Recent Events
Jan. 18, 2008
Late January –
mid-February
Late February
March 1, 2008
Version 2.2 model used in TPB’s
conformity work; draft report
distributed to TFS
Additional refinements
implemented; conformity
scenarios re-run with refinements
Model documentation finalized;
transmittal package prepared
Documentation is posted on the
TPB web site. TPB responded to
outstanding requests
3/21/08 Ver2.2 Presentation to the TFS
2
Final Documentation on Website
3/21/08 Ver2.2 Presentation to the TFS
3
Version 2.2 Documentation
•
What’s included:
1.
2.
3.
4.
5.
Overview of features & description (Ch. 1)
Inputs & model specification (Ch. 2-8)
Validation (Ch. 9)
User’s application guide (Ch. 10-21)
Technical appendix
•
•
•
Detailed model output summaries
Application listings (scripts, batch files, etc.)
Flowcharts
3/21/08 Ver2.2 Presentation to the TFS
4
Distinguishing Features of Ver. 2.2
1. Commercial vehicle model added
2. Revised/moderated external traffic forecasts
3. Revised volume-delay functions and added
queuing delay function to freeway volumedelay formulation
4. Reduction/removal of model adjustments (K
factors, etc.)
5. 60 Iterations of user equilibrium traffic
assignment
3/21/08 Ver2.2 Presentation to the TFS
5
Latest Refinements: #1 of 3
Modified approach for disabling ‘dummy links’ from queuing delay
• Revised approach
identifies link
disabling on a
time-of-day basis;
this is more
accurate
3/21/08 Ver2.2 Presentation to the TFS
6
Latest Refinements: #2 of 3
Modified highway toll skims development wrt. the mode choice model
• Highway skims are normally developed by
mode (SOV, HOV 2-occ, HOV 3+occ) and
include time, distance, toll
• Tolls are now expressed differently, based
on toll policy type:
– Fixed toll facilities (e.g., Gov. Nice Bridge,
Dulles Toll Road)
– Variably priced toll facilities (HOT Lanes in
Virginia, electronic toll lanes in Md.)
3/21/08 Ver2.2 Presentation to the TFS
7
Latest Refinements: #3 of 3
Modified highway toll skims development wrt. the mode choice model
Previous highway skim
definition
Updated highway skim
definition
Time (in min)
Time plus time equivalent of monetary
toll values on variably priced toll
facilities only (in min)
Distance (in 1/10s of mi.)
Distance (in 1/10s of mi.)
Toll on any facilities (in cents)
Toll on fixed price toll facilities only
(in cents)
3/21/08 Ver2.2 Presentation to the TFS
8
Previous and Revised Traffic Growth
Projections at all External Stations
Avg. Annual Daily Traffic (Millions)
3.5
3
2.5
previous
2
revised
1.5
1
0.5
0
2000
2005
2010
2015
Year
2020
2025
3/21/08 Ver2.2 Presentation to the TFS
2030
9
Total HH, Job, and VMT Forecasts
Version 2.2 Model w ith Round 7.1 Coop. Forecasts
6,000
250
200
4,000
150
3,000
100
2,000
50
1,000
0
2000
VMT (in millions)
HHs, Jobs
(in thousands)
5,000
0
2005
2010
2015
2020
2025
2030
Year
Households
Employment
3/21/08 Ver2.2 Presentation to the TFS
Total VMT
10
Vehicle Miles of Travel Forecasts (in millions)
V2.1D#50 Air Quality Conformity (Fall 2006)
vs
V2.2 Air Quality Conformity (Fall 2007)
250
217
195
200
171
149
150
188
200
166
147
V2.1D#50
V2.2
100
50
0
2002
2010
2020
2030
Note: V2.1D#50 model results are based on Round 7.0a Cooperative Forecasts;
V2.2 model results are based on Round 7.1 Cooperative Forecasts
3/21/08 Ver2.2 Presentation to the TFS
11
VMT per Household Forecasts
V2.1D#50 Air Quality Conformity (Fall 2006)
vs
V2.2 Air Quality Conformity (Fall 2007)
70.0
67.0 65.8
67.1
64.6
67.4
68.3
64.1
62.5
60.0
50.0
V2.1D#50
40.0
V2.2
30.0
20.0
10.0
0.0
2002
2010
2020
2030
Note: V2.1D#50 model results are based on Round 7.0a Cooperative Forecasts;
V2.2 model results are based on Round 7.1 Cooperative Forecasts
3/21/08 Ver2.2 Presentation to the TFS
12
100
2030 VMT by Facility Type (millions)
V2.1D#50 Air Quality Conformity (Fall 2006)
vs
V2.2 Air Quality Conformity (Fall 2007)
92
90
79
80
71 69
70
V2.1D#50
V2.2
60
50
40
28 29
30
20
15
12
10
9
9
3
2
0
Freeway
Major Art
Minor Art
Collector
Exprway.
Ramp
Note: V2.1D#50 model results are based on Round 7.0a Cooperative Forecasts;
V2.2 model results are based on Round 7.1 Cooperative Forecasts
3/21/08 Ver2.2 Presentation to the TFS
13
P/A Balance Over Time
Based on V2.2 Trip Generation and Round 7.1 Coop. Forecasts
Year
2005
2010
2020
2030
Purpose
hbw
hbs
hbo
total hb
hbw
hbs
hbo
total hb
hbw
hbs
hbo
total hb
hbw
hbs
hbo
total hb
Productions
(intl.&extl.)
4,266,430
3,348,743
10,242,674
17,857,847
4,640,673
3,638,780
11,079,047
19,358,500
5,270,261
4,120,095
12,457,036
21,847,392
5,715,375
4,458,003
13,423,732
23,597,110
3/21/08 Ver2.2 Presentation to the TFS
Attractions
(intl.&extl.)
4,330,065
3,149,597
10,122,045
17,601,707
4,759,902
3,397,367
11,016,825
19,174,094
5,463,084
3,785,381
12,504,288
21,752,753
6,032,686
4,094,528
13,589,540
23,716,754
P/A
Ratio
0.99
1.06
1.01
1.01
0.97
1.07
1.01
1.01
0.96
1.09
1.00
1.00
0.95
1.09
0.99
0.99
14
Special Modeling Applications
(Reference page 1-10 in Model Report)
•
Some forecasts are developed using elements
of two model executions. This approach is
used to reflect special policy conditions:
1. Transit constraint: 2010 transit trips are used to
constrain modeled 2020, 2030 transit trips
to/through the regional ‘core’
2. HOT lane modeling: HOV level-of-service matrices
are specially developed in ‘initial’ model executions;
the ‘initial’ HOV skims are used in the ‘final’ model
execution
3/21/08 Ver2.2 Presentation to the TFS
15
Transit Constraint
(Applied in 2020, 2030 simulations)
– Reason: Infrastructure limitations will
constrain peak Metrorail travel to/through
the regional ‘core’ to 2010 levels
– Approach:
1. 2010 model run is executed; 2010 final iteration
transit trips created
2. 2020/ 2030 model runs are executed; after mode
choice step, peak transit trips to/through the
regional core are compared to 2010 levels.
3. 2020/2030 peak transit trips exceeding 2010
levels are converted to auto trips
3/21/08 Ver2.2 Presentation to the TFS
16
HOT Lane Modeling
(Applied in 2010, 2020, 2030 simulations)
•
•
Reason: VA policy assumes that HOV service levels
will be maintained with HOT lane operation
Approach:
1. An initial run is executed with the HOT lane facility simulated as
an HOV-priority facility (hypothetical). HOV level of service
(LOS) matrices for each iteration are developed. This is known
as a ‘BASE’ model execution
2. A second model run is executed, with the HOT lane facility
accordingly coded (pay SOV’s and free HOV’s are allowed
access). Initial tolls rates are used. The final assignment is
then run iteratively, so that tolls rates are developed by
segment and time-period (off-line step)
3. A final run utilizes the HOV LOS matrices developed in Step 1
with the toll rates developed in Step 2. This final model
execution is known as the ‘Conformity’ run
3/21/08 Ver2.2 Presentation to the TFS
17
TPB Forecasts Must Be Executed
in Sequence
•
•
•
Model years available: 2000, 2002, 2005,
2008-2010, 2020, 2030
‘Early’ years (2000 – 2009) are not dependent
upon prior runs
‘Out’ years 2010-2030 are dependent on prior
runs; recommended sequence:
1.
2.
3.
4.
5.
6.
2010 Base
2010 Conformity
2020 Base
2020 Conformity
2030 Base
2030 Conformity
3/21/08 Ver2.2 Presentation to the TFS
18
Version 2.2 Model Execution
• Applied in a ‘command prompt’ window
• Structured application
– Standardized subdirectory system
– Pre-established batch files
– Generically named inputs and outputs that are
established in specific subdirectories
3/21/08 Ver2.2 Presentation to the TFS
19
Why use specific subdirectories,
generic names, and batch files?
• It minimizes model preparation time
• Generically named inputs and outputs
facilitates the ability to prepare
comparative summaries between
alternatives
• It enables the analyst to focus on what’s
important:
– the accuracy of inputs
– the analysis of outputs
3/21/08 Ver2.2 Presentation to the TFS
20
Version 2.2 Subdirectories
\Version2.2_Xmittal\  ‘Root’ Subdirectory / name arbitrary, typically project related
(batch files)
\SOFTWARE
\CONTROLS
\SCRIPTS
\SUPPORT
‘Boilerplate’ subdirectories for model application
Subdir. names must be as shown
\2000_ModDev  ‘Model ‘output’ subdirectories / name is arbitrary
\Inputs
 ‘output’ subdirs. must have a ‘child’ subdirectory
\2002_Conf named ‘Inputs’ where modeling inputs reside. Input files
\Inputs
are named generically
\2005ModDev
\Inputs
.
.
.
\2030_Conf
\Inputs
3/21/08 Ver2.2 Presentation to the TFS
21
Batch File Types in the Root SD
Batch Files
Purpose
Primary batch file
(e.g., Runall2000.bat)
Defines secondary batch file,
output subdirectory (used in sec.
batch file, and generates run time /
log files
Secondary batch file
(e.g., Runall_2000.bat)
Defines sequence of iterations and
modeling steps, defines year
(_year_), and model description
(_Alt_)
Model Step batch files
(Set_Factors.bat)
.
.
.
Calls scripts/ programs to execute
individual modeling steps and to
provide iteration-specific file output
names
 User enters this
batch file name at
command prompt
 Pre-established
file ‘called’ by
primary batch file
 Pre-established
file ‘called’ by
secondary batch file
(Highway_skims.bat)
NOTE: the _Year_ variable must be accurately defined (e.g. ‘_year = 2030’)
3/21/08 Ver2.2 Presentation to the TFS
22
Primary Batch File
:: runall2000.bat, 2008-02-04
:: Source: M:\model_dev\Version2.2_Jan08_Xmittal
Root Subdirectory
set root=E:\model_dev\Version2.2_Jan08_Xmittal
set scenar=2000
Output Subdirectory
set runbat=runall_2000.bat
Secondary batch file
set fullpth=%root%\%scenar%
:: Std error redirected to a file; Std output split between file and screen
timethis "cmd /c %runbat% %scenar% 2> %fullpth%\%scenar%_errs.txt" | tee
%fullpth%\%scenar%_output.txt
start %fullpth%\%scenar%_errs.txt
start %fullpth%\%scenar%_output.txt
:: Cleanup
set root=
set scenar=
set fullpth=
set runbat=
Output log and error listing files
3/21/08 Ver2.2 Presentation to the TFS
23
Example Section of Secondary
Batch File
:: runall_2000.bat
:: TPB Travel Model, Version 2.2
set _year_=2000
set _alt_=Version_2.2
:: Make sure appropriate MC control files exist in \controls SD
:: and copy to generic names in the output SD.
if not exist
controls\mc_hbw00.ctl goto err
if not exist
controls\mc_hbs00.ctl goto err
if not exist
controls\mc_hbo00.ctl goto err
if not exist
controls\mc_nhb00.ctl goto err
copy controls\mc_hbw00.ctl %1\mchbw.ctl /y
copy controls\mc_hbs00.ctl %1\mchbs.ctl /y
copy controls\mc_hbo00.ctl %1\mchbo.ctl /y
copy controls\mc_nhb00.ctl %1\mcnhb.ctl /y
rem ====== Pump Prime Iteration ==========================================
set _iter_=pp
set _prev_=pp
call Set_Factors.bat %1
call Set_CPI.bat %1
call PP_Highway_Build.bat %1
.
.
.
call Highway_Assignment.bat %1
call Highway_Skims.bat %1
rem ====== End of batch file =============================================
3/21/08 Ver2.2 Presentation to the TFS
24
Model Step Batch File Example
Highway Assignment
CD %1
REM Highway Assignment
del tppl*.*
del
%_iter_%_Highway_Assignment.rpt
start /w TPPLUS.EXE ..\scripts\Highway_Assignment.s /start -Ptppl -S..\%1
if errorlevel 1 goto error
copy tppl*.prn
%_iter_%_Highway_Assignment.rpt
copy
%_iter_%_Highway_Assignment.rpt temp.dat
..\software\extrtab temp.dat
copy extrtab.out %_iter_%_Highway_Assignment.tab
goto end
:error
REM Processing Error....
PAUSE
:end
CD..
3/21/08 Ver2.2 Presentation to the TFS
25
Version 2.2 Modeling Step Batch Files
Batch File
Scripts / Programs
Purpose
Set_Factors.bat
Set_Factors.s
Create K-factors and time penalties
Set_CPI.bat
Set_CPI.s
PP_Highway_Build.bat
Staprotp.exe
Highway_Build_Toll.s
PP_Highway_PNR.bat
Pump_Prime_Skims.s
Create highway and transit cost deflators
Extract transit network elements from station file. Build highway
network
Create initial AM/ off-peak hwy. skims & auto access links
Highway_PNR.bat
Auto_Access.s
Create current iteration auto access links
PP_Transit_Prep.bat
NodesTB.exe
Cntconn2.exe
Gis_proc.exe
Wlklnktp.exe
Update_Wklinks.s
Prefartp.s
Create base transit network, walk links, and transit fare file
Transit_Skim.bat
Transit_Skims.s
Create transit skims of initial or current iteration
Transit_Fare.bat
Metrorail_Skims.s
Mfare1.s
Mfare2.s
Create current iteration transit fares
Trip_Generation.bat
Demo_models.s
Trip_Generation.s
CV_Trip_Generation.s
COGMCA1.exe
Execute daily trip generation
Trip_Distribution.bat
Trip_Distribution.s
CV_Trip_Distribution.s
Execute daily trip distribution
Mode_Choice.bat or
Mode_Choice_TC.bat or
HSR10_Mode_Choice.bat or
HSR20_Mode_Choice_TC10.bat or
HSR30_Mode_Choice_TC10.bat
COGMC.exe MC_Summary.s
MC_Constraint.s
MC_ConSummary.s
Execute daily mode choice model (optionally execute mode
choice model with the Transit Constraint (TC) and/or with HOV
Skim Replacement (HSR))
PP_Auto_Drivers.bat
PP_Auto_Drivers.s
Generate initial auto drivers (without mode choice model)
Auto_Driver.bat
MC_Auto_Drivers.s
Generate initial auto drivers after mode choice model
Time-of-Day.bat
Time-of-Day.s
CV_Time-of-Day.s
Misc_Time-of-Day.s
Convert daily modeled trips to AM, PM, and Off-peak
Highway_Assignment.bat
Highway_Assignment.s
Execute user equilibrium hwy. assignment using Frank-Wolfe
algorithm
Highway_Skims.bat
Highway_Skims.s
Create highway skims from assignment
3/21/08 Ver2.2 Presentation to the TFS
26
Sequence of Version 2.2 Modeling Steps by Iteration
Initial (Pump Prime) Iteration
Standard Iterations
Batch File
Scripts / Programs
PP
1
2
3
4
5
6
Set_Factors.bat
Set_Factors.s
1
Set_CPI.bat
Set_CPI.s
2
PP_Highway_Build.bat
Staprotp.exe
Highway_Build_Toll.s
3
PP_Highway_PNR.bat
Pump_Prime_Skims.s
4
Highway_PNR.bat
Auto_Access.s
PP_Transit_Prep.bat
NodesTB.exe
Cntconn2.exe
Gis_proc.exe
Wlklnktp.exe
Update_Wklinks.s
Prefartp.s
13
23
33
43
53
63
5
Transit_Skim.bat
Transit_Skims.s
6
Transit_Fare.bat
Metrorail_Skims.s
Mfare1.S
Mfare2.s
14
24
34
44
54
64
15
25
35
45
55
65
Trip_Generation.bat
Trip_Generation.s
CV_Trip_Generation.s
Trip_Distribution.bat
Trip_Distribution.s
CV_Trip_Distribution.s
7
16
26
36
46
56
66
8
17
27
37
47
57
67
Mode_Choice.bat or
Mode_Choice_TC.bat or
HSR10_Mode_Choice.bat or
HSR20_Mode_Choice_TC10.bat or
HSR30_Mode_Choice_TC10.bat
COGMC.exe MC_Summary.s
MC_Constraint.s
MC_ConSummary.s
18
28
38
48
58
68
PP_Auto_Drivers.bat
PP_Auto_Drivers.s
Auto_Driver.bat
MC_Auto_Drivers.s
Time-of-Day.bat
Time-of-Day.s
CV_Time-of-Day.s
Misc_Time-of-Day.s
19
29
39
49
59
69
10
20
30
40
50
60
70
Highway_Assignment.bat
Highway_Skims.bat
Highway_Assignment.s
11
21
31
41
51
61
71
Highway_Skims.s
12
22
32
42
52
62
72
9
3/21/08 Ver2.2 Presentation to the TFS
27
What Files are in the Inputs SD?
• 42 files are required consisting of:
– Land use files
– Exogenous trip files
– External, through trip files
– Highway/transit network files
– 2 optional transit access link files may be
used if desired (be careful)
Recommendation: DO NOT mix and match
V2.1D inputs with V2.2
3/21/08 Ver2.2 Presentation to the TFS
28
Land Use / Trip Inputs
Filename
Description
Text or
Binary
ZONE.ASC
Zonal Land Use
Text
AREAOVER.ASC
Zone Area Type Override File
Text
AEXT.ASC
Zonal External Attractions
Text
PEXT.ASC
Zonal External Productions
Text
CV_ExtThru_Ends.ASC
Zonal Commercial Vehicles
External and Through trip ends
Text
New File/ CV model
AIRPAX.ADR
SCHL.ADR
TAXI.ADR
VISI.ADR
Air Passenger Auto Dr. Trips
School Auto Dr. Trips
Taxi Auto Dr. Trips
Visitor/Tourist Auto Dr. Trips
Binary
Binary
Binary
Binary
XXAUT.VTT
Through Auto Drivers
Binary
XXTRK.VTT
Through Trucks
Binary
Forecasts updated, per Rnd 7.1
Forecasts updated, per Rnd 7.1 and
revised growth assumptions
Forecasts updated, per Rnd 7.1 and
revised growth assumptions
XXCV.VTT
Through Commercial Vehicles
trips
Binary
3/21/08 Ver2.2 Presentation to the TFS
Updates from V2.1D#50
Round 7.1 Land use - based.
Essentially same, but the zonal
income index has been updated
-
Forecasts updated, per Rnd 7.1 and
revised growth assumptions
Forecasts updated, per Rnd 7.1 and
revised growth assumptions
New File/ CV model
29
Network Inputs
Description
Highway Links
Highway Node File
AM TAZ/Facility Type Speed Look-up
Off-Peak TAZ/Facility Type Speed Look-up
AM Facility/Area Type Speed Look-up
Off-Peak Facility/Area Type Speed Look-up
Text or
Binary
Text
Text
Text
Text
Text
Text
Network, highway TOLL.ESC
Highway Toll Value / Deflator File
Text
Network, highway TOLL.INC
Network, highway TOLL.SKM
MODE1AM.TB,…MODE9AM.TB
Network, transit
MODE1OP.TB,… MODE9OP.TB
Highway Toll /Time Equivalent by Income Grp.
Highway Toll/Time Equivalent by Veh. Type
Text
Text
AM/OP Transit Line Files, Mode 1 to 9
Text
Input Type
Network, highway
Network, highway
Network, highway
Network, highway
Network, highway
Network, highway
Filename
LINK.ASC
NODE.ASC
TAZAMSPD.LKP
TAZOPSPD.LKP
AMSPD.LKP
OPSPD.LKP
Updates from V2.1D#50
TOLLGRP field expanded
TG_ATOVR added to impose uniform
speeds/capacities on HOT Links, ESCFAC array
should be set to zero.
Now developed in TRNBUILD format, not
TRNPTH; OWNER keyword used
Network, transit
STA_TPP.BSE
Rail Station/PNR File
Text
Max. staitions/PNR lots is now 1000; 'L' code
now used (light rail) in addition to 'M', 'C', and 'B'
Network, transit
Network, transit
Network, transit
Network, transit
Network, transit
Network, transit
Network, transit
Network, transit
RAIL_LNK.BSE
TRNPEN.DAT
GISWKAAM.ASC
GISWKAOP.ASC
GISWKLAM.ASC
GISWKLOP.ASC
LBUS_TIMFTRS.ASC
RIVERSTP.BNA
Rail Links
Metrorail Station Network Turn Penalty File
GIS AM Zonal Walk Area File
GIS Off-Peak Zonal Walk Area File
GIS AM Walk Link File
GIS Off-Peak Walk Link File
Local Bus Time Degradation Factors
River Coordinate File
Text
Text
Text
Text
Text
Text
Text
Text
-
Network, transit
TAZFRZN.ASC
TAZ/Bus Fare Zone Equivalency
Text
New format, per MFARE TP+ conversion
Network, transit
BUSFARAM.ASC
MFARE2 AM Bus Fare Zone Matrix
Text
New format, per MFARE TP+ conversion
Network, transit
BUSFAROP.ASC
MFARE2 Off-Peak Fare Zone Matrix
Text
New format, per MFARE TP+ conversion
Network, transit
Network, transit
Network, transit
Network, transit
Network, transit
HBOMC.OLD
HBSMC.OLD
HBWMC.OLD
NHBMC.OLD
mfare1_Sta_Disc.ASC
Initial HBO Mode Choice Trips
Initial HBS Mode Choice Trips
Initial HBW Mode Choice Trips
Initial NHB Mode Choice Trips
Metrorail Station Discount File
Binary
Binary
Binary
Binary
Text
New FILE, per MFARE TP+ conversion
Network, transit
Tariff.txt
WMATA Tariff policy control file
Text
New FILE, per MFARE TP+ conversion
Network, transit
CPI_FILE.txt
Historical CPI file
Text
New FILE, per SET_CPI.S script
3/21/08 Ver2.2 Presentation to the TFS
30
Iteration 6 Outputs: Transit
Filename
File Type
i6_AM_WK.SKM
i6_AM_DR.SKM
i6_OP_WK.SKM
i6_OP_DR.SKM
binary matrix
i6_AM_WK.TTT
i6_AM_DR.TTT
i6_OP_WK.TTT
i6_OP_DR.TTT
binary matrix
Tables on Matrices
t1 - xfer walk time (min)
t2 - drive acc time (min)
t3 - initial wait (min)
t4 - xfer wait (min)
t5 - in-veh time bus (min)
t6 - in-veh time Metrorail (min)
Note: Walk access time NOT included above
t1/total transit time (min)
Note: Avg. Walk access time IS included above
3/21/08 Ver2.2 Presentation to the TFS
31
Iteration 6 Outputs: Transit Fares
Filename
i6_AM_WK.FAR
i6_AM_DR.FAR
i6_OP_WK.FAR
i6_OP_DR.FAR
File Type
binary matrix
Tables on Matrices
t1- Total deflated transit fares
i6_AM_WK.FR5
i6_AM_DR.FR5
i6_OP_WK.FR5
i6_OP_DR.FR5
binary matrix
t1- Total deflated transit fares
t2 - non-deflated bus fare
t3 - non-deflated Metrorail fare
t4 - non-deflated access bus fare
t5 - non-deflated egress bus fare
3/21/08 Ver2.2 Presentation to the TFS
32
Iteration 6 Outputs: Trip Gen.
Filename
Est_Zonal_HH_Size.TXT
Est_Zonal_HH_VehAv.TXT
Est_Zonal_HH_Inc.TXT
File Type
Text
Description
zonal HHs by size group: 1, 2, 3, 4+
zonal HHs by vehs available: 0, 1, 2, 3+
zonal HHs by income group: 1, 2, 3, 4
i6HHI1_SV.ASC
i6HHI2_SV.ASC
i6HHI4_SV.ASC
i6HHI3_SV.ASC
Text
zonal HHs in income group 1 by Size/ Veh.Av. groups
zonal HHs in income group 2 by Size/ Veh.Av. groups
zonal HHs in income group 3 by Size/ Veh.Av. groups
zonal HHs in income group 4 by Size/ Veh.Av. groups
i6HH_Veh.dat
Text
zonal HHs by vehs. avail.: 0, 1, 2+
hbw_NM_PsAs.ASC
Text
zonal non-motorized trips
i6_Trip_Generation.txt
Text
Trip generation trip summary report
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Iteration 6 Outputs: Trip Dist.
Filename
File Type
Tables on Matrices / Description
hbwesti6.ptt
hbsesti6.ptt
hboesti6.ptt
nhbesti6.ptt
mtkesti6.vtt
htkesti6.vtt
binary
7 Psn Tabs by market - Inc 1,2,3,4, Ext Intst./Extl Art., Total
7 Psn Tabs by market - Inc 1,2,3,4, Ext Intst./Extl Art., Total
7 Psn Tabs by market - Inc 1,2,3,4, Ext Intst./Extl Art., Total
4 Psn Tabs by market - Iinternal, Ext Intst./Extl Art., Total
3 Veh. tabs by market - Intl, Extl., Total
3 Veh. tabs by market - Intl, Extl., Total
i6_hbwmu.ptt
i6_hbsmu.ptt
i6_nhbmu.ptt
i6_hbomu.ptt
binary (MINUTP) t1 - Total HBW person trips
t1 - Total HBS person trips
t1 - Total HBO person trips
t1 - Total NHB person trips
i6_TrpDst.tab
text
Jurisdictional Trip summaries by purpose
com.trp
binary
commercial veh. trips
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Iteration 6 Outputs: Mode Choice
Filename
mc_HBWi6.FIN
mc_HBSi6.FIN
mc_HBOi6.FIN
mc_NHBi6.FIN
MC_ALLi6.FIN
File Type
binary/MIMUTP
Tables on Matrices / Description
t1/LOV Auto Driver
t2/LOV Auto Person
t3/ Walk Access Transit
t4/ Drive Access Transit
t5 /HOV Auto Driver - 2 Psn Occ. - on priority facilities
t6/ HOV Auto Person
t7 /HOV Auto Driver - 3+ Psn Occ.- on priority facilities
i6_mc_summary.tab
i6_mc_Consummary.tab
text
text
Jurisdicational summary of mode choice model, by purpose
Note: unconstrained and constrained Mode choice outputs are
provided
3/21/08 Ver2.2 Presentation to the TFS
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Iteration 6 Outputs: Assignment,
Highway Skims
Filename
i6PM.VTT
i6AM.VTT
i6OP.VTT
File Type
binary
Tables on Matrices / Description
t1-SOV trips
t2-HOV2Occ
t3-HOV3+Occ
t4-Trucks
t5- Airport Auto Drivers
I6HWY.NET
Loaded Links file
Highway_Assignment.tab
Trip summary
sovi6op.skm
hov2i6op.skm
hov3i6op.skm
t1- time(min), Distance (1/10ths mi), Toll (1994 cents)
t1- time(min), Distance (1/10ths mi), Toll (1994 cents)
t1- time(min), Distance (1/10ths mi), Toll (1994 cents)
3/21/08 Ver2.2 Presentation to the TFS
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Link variables on the final loaded-link highway
network (i6hwy.net)
Variable
A
B
DISTANCE
SPDCLASS
CAPCLASS
COUNT
JUR
SCREEN
FTYPE
TOLL
TOLLGRP
AMLANE
AMLIMIT
PMLANE
PMLIMIT
OPLANE
OPLIMIT
PROJ_ID
TAZ
AREATP
DEFLATIONFTR
AMTOLL
PMTOLL
OPTOLL
PPAMSPD
PPOPSPD
PPPMSPD
AMHTIME
PMHTIME
OPHTIME
ALLOWQUE
Format
5
5
5.2
2
2
3
2
2
1
3
1
1
1
1
1
1
1
A/N
4
1
6.3
9.5
9.5
9.5
8.5
2
2
8.5
8.5
8.5
1
Description
A node
B node
Link distance (miles)
Speed class
Capacity class
Daily ground count in thousands (AAWT)
Jurisdiction Code (0-23):
0/dc, 1/mtg, 2/pg, 3/alr/, 4/alx,5, ffx, 6/ldn, 7/ pw, 8/(unused), 9/ frd, 10/how, 11/aa,
12/chs, 13/(unused), 14/car, 15/cal, 16/stm, 17/ kg, 18/fbg, 19/stf, 20/spts, 21/fau,
22/clk, 23/jef
Screenline code (1-20, 22-28, 31-38)
Link Facility Type Code (0-6):
0/centroids, 1/Freeways, 2/Major Art., 3/Minor Art, 4/Collector, 5/Expressway,
6/Ramp (future use)
Toll Value in current year dollars
Toll Group Code (1-9)
AM Peak No. of Lanes
AM Peak Limit Code (0-9) See note #1
PM Peak No. of Lanes
PM Peak Limit Code (0-9) See note #1
Off-Peak No. of Lanes
Off-Peak Limit Code (0-9) See note #1
Project ID
Transportation Analysis Zone associated with the link
Area type (1-7)
Factor for deflating current year tolls to 1994 values
Final AM period toll value derived from TOLL & TOLLGRP
Final PM period toll value derived from TOLL & TOLLGRP
Final OP period toll value derived from TOLL & TOLLGRP
Pump prime iteration, AM speed (mph)
Pump prime iteration, off-peak speed (mph)
Pump prime iteration, PM speed (mph)
Highway link time in minutes, computed from the pump-prime speeds, AM
Highway link time in minutes, computed from the pump-prime speeds, PM
Highway link time in minutes, computed from the pump-prime speeds, OP
0 or 1 ( 0/ disallow queuing delay / 1 /allow queuing delay)
3/21/08 Ver2.2 Presentation to the TFS
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Link variables on the final loaded-link highway
network (i6hwy.net)- continued
<Iter> = pp, i1, i2,…..i6
<Iter>AMVOL
<Iter>AMVC
<Iter>AMVDF
<Iter>AMSPD
<Iter>AMQTIMEPEN
<Iter>PMVOL
<Iter>PMVC
<Iter>PMVDF
<Iter>PMSPD
<Iter>PMQTIMEPEN
<Iter>OPVOL
<Iter>OPVC
<Iter>OPVDF
<Iter>OPSPD
<Iter>OPQTIMEPEN
<Iter>24VOL
<Iter>24VMT
Notes:
1.
5
7.5
7.5
8.5
7.5
5
7.5
7.5
8.5
7.5
5
7.5
7.5
8.5
7.5
6
12.5
<Iter>, AM estimated volume
<Iter>, AM estimated volume-to-capacity ratio
<Iter>, AM VDF value for the corresponding VC ratio
<Iter>, AM speed (mph)
<Iter> AM Queuing Delay time (min)
<Iter>, PM estimated volume
<Iter>, PM estimated volume-to-capacity ratio
<Iter>, PM VDF value for the corresponding VC ratio
<Iter>, PM speed (mph)
<Iter> PM Queuing Delay time (min)
<Iter>, OP estimated volume
<Iter>, OP estimated volume-to-capacity ratio
<Iter>, OP VDF value for the corresponding VC ratio
<Iter>, OP speed (mph)
<Iter> OP Queuing Delay time (min)
<Iter>, daily (24-hour) estimated volume (AAWDT)
<Iter>, daily (24-hour) estimated vehicle miles of travel
Limit Codes are 0,1 = General Use, 2 = HOV2,3+ only, 3 = HOV 3+ Only, 4 = Truck Prohibited, 5 = Non-Airport
Vehicles Prohibited, 6-8 = (unused), 9 = ‘Transit Only’ link (links used to more accurately depict coded transit routes,
but are below the grain of the zone system; these links are not included in the highway assignment process).
3/21/08 Ver2.2 Presentation to the TFS
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Conclusions
• Version 2.2 model is now ‘on-line’
• TPB is currently responding to 10 requests
• Version 2.2 represents an improvement in the
TPB’s travel forecasting practice
– Fewer adjustment factors used
– Freeway queuing delay is now addressed
– More realistic external traffic assumptions used
• Version 2.2 will continue to be monitored and
refined, as is the case with any production model
• TPB’s models development activities are
continuing: Version 2.3 is in progress
3/21/08 Ver2.2 Presentation to the TFS
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