Making TransJakarta a World Class BRT System - ITDP | Institute for ...

ANNEX I
Because of flaws with the SITRAMP model developed by JICA (gaps in the network,
lack of data on paratransit vehicles or occupancy, and exaggerated expansion factors),
ITDP in cooperation with the University of Indonesia Center for Transportation Studies
created a new traffic model in EMME/2 for the TransJakarta system to assist with the
design of future corridors and contract negotiations with potential operators. Over 60,000
on-board origin destination surveys were conducted with transit passengers. Calibration
of the entire network was also done with observed data. The control points for observed
volumes of passengers correspond to the 60 bi-directional sections of the OD survey,
which were used to expand the OD. In addition, 12 bidirectional points were added to
refine the adjustment
A.I. Estimation of Origin Destination matrix based on onboard survey
The origin destination onboard survey has been applied in 60 strategic selected sections,
with a simultaneous frequency occupation survey to permit the expansion of the data
collected.
Location of the surveyed sections
The data has been collected for all the day, though it is possible to extract matrices for
different periods of time. In the present study, a morning peak hour matrix was extracted.
Considering only the origin destinations pairs that appear during one hour will result in a
matrix with a poor distribution, meaning that only a part of the ODs can be observed in this
Final Recommendations for TransJakarta, p. 128