Read data from text-file and create PT timetables in AIMSUN by Peter Hidas.

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#------------------------------------------------------------------------------- # Name: CreatePTtimetables.py # Purpose: Read data from text-file and create PT timetables in AIMSUN # # Author: Peter Hidas # # Created: 15/01/2007 # Last modified: Peter Hidas 18/01/2007 #------------------------------------------------------------------------------- # # Data structure of TimeTable input file: # # l line1_Name, timeTable_Name # c schedule-1 # t startTime, meanHwy, devHwy, vehicle # s stop1, mean, dev # s stop2, mean, dev # c ... # s stopN, mean, dev # c schedule-2 # c ... # l line2_Name, timeTable_Name # c ... # # Notes # 1. data items must be separated by commas (as the items may include several words) # 2. The first character of each line is used as a code # 3. Only 3 codes are 'active': (l, t, s), lines starting with any other # character are ignored # 4. The time parameters for a schedule (startT, meanHwy, devHwy) must be # given as a string HH:MM:SS # 5. The vehicle parameter for the schedule is the name of the vehicle type # 6. The stop parameter is the name of the bus stop # 7. The time parameters for the bus stops (mean, dev) must be given # in seconds (may be decimal) # 8. There should be only one schedule for a given startTime in a timeTable, # so if there is an existing schedule, it is overwritten by the new values # 9. The script makes use of some general functions: # - findByName # - findByExternalId # which are implemented in the "initial.py" script - this script is always # executed by Aimsun before any other scripts # # Example: # l c175Wo, EMME # t 07:00:00, 00:02:37, 00:01:30, Bendy Bus # s Terminus Wynyard, 60, 10 # s Wynyard Park, 24, 12 #------------------------------------------------------------------------------- # global variables path = 'D:/My_Documents/Aimsun/Examples/' dataName = 'PT_tTable_Data.txt' # return timeTable & its schedules if exists, create one otherwise def getTimeTable(aLineName, aTableName): line = findByName(model, aLineName, "GKPublicLine") # check if line exists if line == None: tTable = None schedules = [] else: # get the existing timeTables of the line tTables = line.getTimeTables() tTable = None for t in tTables: # check if tTable exists if str(t.getName()) == aTableName: tTable = t # existing timeTable: get list of schedules schedules = tTable.getSchedules() break if tTable == None: tTable = GKSystem.getSystem().newObject( "GKPublicLineTimeTable", model ) tTable.setName(aTableName) schedules = [] line.addTimeTable( tTable ) return tTable, schedules def createDeparture(meanHwy, devHwy, veh): departure = GKPublicLineTimeTableDeparture() departure.setMeanTime( meanHwy ) departure.setDeviationTime( devHwy ) departure.setVehicle ( veh ) return departure def createSchedule(tTable, startT, meanHwy, devHwy, veh): schedule = tTable.createNewSchedule() schedule.setDepartureType( GKPublicLineTimeTableSchedule.eInterval ) schedule.setTime (startT) departure = createDeparture(meanHwy, devHwy, veh) schedule.addDepartureTime( departure ) return schedule # ======= Start of Main code ===================== fName = path + dataName logName = path + dataName[:dataName.index('.')] + '.log' logFile = open(logName, 'w') logFile.write('Processing File %s...\n' % (fName) ) iL = 0 # line number try: f = open(fName, 'r') for line in f: iL = iL + 1 # print line line = line.strip() # remove leading/trailing spaces and EOL char w = line[2:].split(',') # split line by commas if line[0] == 'l': # --- timetable for new PT line --- tTable, schedules = getTimeTable( w[0].strip(), w[1].strip() ) if tTable == None: # Error: interrupt process print "Error at line %i: %s" % (iL, line) logFile.write("Error at line %i: %s" % (iL, line)) break else: logFile.write('TimeTable %s for Line %s created\n' % ( w[1].strip(), w[0].strip() ) ) elif line[0] == 't': # --- schedule times ------ startT = QTime.fromString( w[0].strip() ) meanHwy = GKTimeDuration.fromString( w[1].strip() ) devHwy = GKTimeDuration.fromString( w[2].strip() ) veh = findByName(model, w[3].strip(), "GKVehicle") if veh == None: # Error: interrupt process print "Error at line %i: %s" % (iL, line) logFile.write("Error at line %i: %s" % (iL, line)) break else: # check if a schedule with the same startTime exists if len(schedules) > 0: for s in schedules: if s.getTime().toString() == startT.toString(): logFile.write('Existing schedule starting at %s was overwritten!\n' % w[0] ) deleteObject( s ) break schedule = createSchedule(tTable, startT, meanHwy, devHwy, veh) if schedule == None: # Error: interrupt process print "Error at line %i: %s" % (iL, line) logFile.write("Error at line %i: %s" % (iL, line)) break else: tTable.addSchedule( schedule ) logFile.write(' Schedule created: %s\n' % line[2:] ) elif line[0] == 's': # --- stop ---------- busStop = findByName(model, w[0].strip(), "GKBusStop") if busStop == None: print "Error at line %i: %s" % (iL, line) logFile.write("Error at line %i: %s" % (iL, line)) break else: mean = float(w[1].strip()) dev = float(w[2].strip()) schedule.setStopTime( busStop, mean, dev, 0 ) logFile.write(' StopTimes added: %s\n' % line[2:] ) else: pass finally: f.close() logFile.close() print "TimeTable Data from file %s created!" % dataName logFile.write("TimeTable Data from file %s created!" % dataName ) # Make sure to reset the UNDO buffer after a non undoable modification model.getCommander().addCommand( None )