Examples

This chapter contains a set of examples. Topics include:

Estimation with prior trip and count data only

The following control data would be appropriate for an initial estimation when the only data available for updating a matrix is from count sites.

Column
1...5...10...15...20...25...30...35..40..45..50..55..60
Estimate with Old Matrix and Count Data
&FILES IMAT1='PRIOR.MAT',
IDAT4='SCRL.DAT',
IDAF1='ROUTES.RCP',
OPRN='MVESTM.PRN',
OMAT1='ESTM.MAT',
ODAT1='PARM.DAT',
ODAT2='GRAD.GDS',
ODAT3='LOG.DAT',
ODAT4='INTCPT.ICP' &END
&PARAM MATID='Estimated Matrix' &END
&OPTION TRPEND=F &END

Estimation with prior trip, count, and trip end data

This is a similar run to 7.1, but additionally trip end data is available. Also, short zone labels are included in the reports.

Column
1...5...10...15...20...25...30...35..40..45..50..55..60
Estimate with an Old Matrix, Counts, and Trip End Data
&FILES IMAT1='PRIOR.MAT',
IDAT1='TEND.DAT',
IDAT4='SCRL.DAT',
IDAT7='COORD.DAT'
IDAF1='ROUTES.RCP',
OPRN='MVESTM.PRN',
OMAT1='ESTM.MAT',
ODAT1='PARM.DAT',
ODAT2='GRAD.GDS',
ODAT3='LOG.DAT',
ODAT4='INTCPT.ICP' &END
&PARAM MATID='Estimated Matrix - including Trip End Data', &END
&OPTION NODLAB=T, LNGLAB=F &END

Estimation with warm start and cost data

The following control data would be suitable if, say, some confidence levels had been altered in data input files, and where the data included both trip and cost matrices, as well as trip end and count data. Long zone labels are to be included in the reports.

Column
1...5...10...15...20...25...30...35..40..45..50..55..60
Re-Estimation with altered Confidence Levels
&FILES IMAT1='PRIOR.MAT',
IDAT1='TEND.DAT',
IDAT2='PARM.DAT',
IDAT3='GRAD.DAT',
IDAT4='SCRL.DAT',
IDAT7='COORD.DAT'
IDAT5='INTCPT.ICP',
IDAF1='ROUTES.RCP',
OPRN='MVESTM.PRN',
OMAT1='ESTM2.MAT',
ODAT1='PARM2.DAT',
ODAT2='GRAD2.GDS',
ODAT3='LOG.DAT' &END
&PARAM TABLES=101, 102, 103, 104 MATID='Re-Estimated Matrix' &END
&OPTION TRIPM=T, 
COSTM=T,
NODLAB= T,
LNGLAB=T
WARMST=T &END

Estimation with highways part trip data

The following control data would be suitable where the data included part-trip data as well as a trip matrix, trip ends, and count data.

Column
1...5...10...15...20...25...30...35..40..45..50..55..60
Estimation including Part Trip data
&FILES IMAT1='PRIOR.MAT',
IDAT1='TEND.DAT',
IDAT4='SCRL.DAT',
IDAF1='ROUTES.RCP',
INET1='PTRIPS.NET',
OPRN='MVESTM.PRN',
OMAT1='ESTM.MAT',
ODAT1='PARM2.DAT',
ODAT2='GRAD2.GDS',
ODAT3='LOG.DAT',
ODAT4='INTCPT.ICP',
ONET1='ESTMPTRP.NET' &END
&PARAM MATID='Estimated Matrix using Part Trip data',
NETID='Estimated Flows (with Part Trip Flows)',
EFLOW=7,
NFLOW='ESTM' &END
&OPTION PRTTRP=T &END

Estimation with public transport part-trip data

The following control data would be suitable for estimating a public transport matrix where the data included part-trip data, organized into three line groups, as well as a trip matrix, trip ends, and count data.

Column
1. 5. 10. 15 .20..25. 30..35 40. 45 .50 .55 .60 
Estimation including Part Trip data by line group 
&FILES IMAT1='PRIOR.MAT',
IDAT2='TEND.DAT',
IDAT4='SCRL.DAT',
IDAF1='ROUTES.RCP',
IDAF2='LINES.PTL'
INET1='PTRIPS.NET',
OPRN='MVESTM.PRN'
OMAT1='ESTM.MAT',
ODAT1='PARM.DAT',
ODAT2='GRAD.GDS',
ODAT3='LOG.DAT',
ODAT4='INTCPT.ICP'
ONET1='ESTMPTRP.NET' &END
&PARAM MATID='Estimated Matrix using Part Trip data',
NETID='Estimated Flows (Prt Trp Flows by Line Group)'
ELINE1=4,
ELINE4=6,
ELINE5=8,
NLINE1='EXPR',
NLINE4='LOCL',
NLINE5='AIRP' &END
&OPTION PRTTRP=T &END

Hierarchic estimation

The following control data would be suitable for estimating a very large public transport matrix where the data included part-trip data as well as a trip matrix, trip ends, and count data.

Column
1...5...10...15...20...25...30...35..40..45..50..55..60Title: 
Large PT Estimation using Part Trip Total Link Flow
&FILES IMAT1='PRIOR.MAT',
IDAT1='TEND.DAT',
IDAT4='SCRL.DAT',
IDAF1='ROUTES.RCP',
IDAF2='LINES.PTL',
IDAF3='DISTRICT.DDF',
IDAT6='LMCTL.DAT',
OPRN='MVESTM.PRN',
OMAT1=ESTM.MAT',
ODAT1='PARM.DAT',
ODAT2='GRAD.GDS',
ODAT3='LOG.DAT',
ODAT4='INTCPT.ICP'
ONET1='ESTMPTRP.NET' &END
&PARAM MATID='Estimated Matrix using Part Trip data',
NETID='Estimated Flows (total Part Trip flow)',
EFLOW=2,
NFLOW='ETOT' &END
&OPTION PRTTRP=T,
DSTRCT=T &END

Example of screenline volumes report

REPORTING OBSERVED/ESTIMATED SCREEN LINE COUNTS
SCREENLINE CONFIDENCE  OBSERVED  ESTIMATED  ESTM-OBSV   OBSV(%) NO OF ODs
 NO & NAME
   1 A'shot Rd W-E
                 80.0   11677.0    11335.4     -341.6     -2.9%       244
   2 A'shot Rd E-W
                 80.0   11677.0    11734.9       57.9      0.5%       244
   3 A3-Hogs Back S-N
                200.0   27947.0    26672.2    -1274.8     -4.6%       160
   4 A3-Hogs Back N-S
                200.0   25504.0    25160.5     -343.5     -1.3%       160
   5 Onslow St S-N
                 80.0   18981.0    17479.2    -1501.8     -7.9%       383
   6 Onslow St N-S
                 80.0   18809.0    18285.2     -523.8     -2.8%       687
   7 Town Centre E-W
                 80.0   16285.0    16556.5      271.5      1.7%       904

   8 Town Centre W-E
                 80.0   22670.0    22494.5     -175.5     -0.8%       870
<continued>