question: public UrbanSimZoneCSVWriterV2 ( String matsim4opusTempDirectory , String matsimOutputDirectory ) { this . matsim4opusTempDirectory = matsim4opusTempDirectory ; this . matsimOutputDirectory = matsimOutputDirectory ; try { log . info ( "Initializing UrbanSimZoneCSVWriterV2 ..." ) ; zoneWriter = IOUtils . getBufferedWriter ( matsim4opusTempDirectory + FILE_NAME ) ; log . info ( "Writing data into " + matsim4opusTempDirectory + FILE_NAME + " ..." ) ; zoneWriter . write ( Labels . ZONE_ID + "," + Labels . ACCESSIBILITY_BY_FREESPEED + "," + Labels . ACCESSIBILITY_BY_CAR + "," + Labels . ACCESSIBILITY_BY_BIKE + "," + Labels . ACCESSIBILITY_BY_WALK + "," + Labels . ACCESSIBILITY_BY_PT ) ; zoneWriter . newLine ( ) ; log . info ( "... done!" ) ; } catch ( Exception e ) { e . printStackTrace ( ) ; } }
target:  writes the header for zones csv file