class RiderStatusTracker:
timestamp = -1
def __init__(self, wait_dict, serve_dict, finish_dict, cancel_dict):
self.__logger = Logger("RiderStatusTracker")
self.__wait_dict = wait_dict
self.__serve_dict = serve_dict
self.__finish_dict = finish_dict
self.__cancel_dict = cancel_dict
def checkRiderStatusIfTimeOut(self, rider):
if RiderStatusTracker.timestamp - rider.getRequestTimeStamp(
) >= rider.getPatience():
rider.setStatus(CANCEL)
self.__cancel_dict[rider.getID()] = rider
zone_id = rider.getSrcZone()
dir = rider.getDirID()
group_id = rider.getGroupID()
del self.__wait_dict[zone_id][dir][group_id][rider.getID()]
if len(self.__wait_dict[zone_id][dir][group_id]) == 0:
del self.__wait_dict[zone_id][dir][group_id]
#cancel_dict[RiderStatusTracker.timestamp][rider.getSrcZone()] += 1
else:
self.__logger.debug(
RiderStatusTracker.timestamp, "updateRiderStatusWhenTimeOut",
None, rider.getID(), "Cancel Time Should be: ",
str(rider.getRequestTimeStamp() + rider.getPatience()))
def updateRiderStatusAfterMatching(self, rider):
rider.calcSat()
rider.setStatus(SERVING)
self.__serve_dict[rider.getID()] = rider
def notifyRiderToFinishTrip(self, rider):
if rider.getStatus() == SERVING:
self.__finish_dict[rider.getID()] = rider
rider.setStatus(FINISHED)
del self.__serve_dict[rider.getID()]
else:
self.__logger.error(RiderStatusTracker.timestamp,
"updateRiderStatusWhenInService", None,
rider.getID(),
"The status and dict not match.")
raise Exception("The rider status and dict not match.")
def updateRiderStatusWhenWait(self, rider, wait_rider_dict):
if rider.getStatus() == WAITING:
rider.tickWaitTime()
wait_rider_dict[RiderStatusTracker.timestamp][
rider.getSrcZone()] += 1
else:
self.__logger.error(RiderStatusTracker.timestamp,
"updateDriverStatusWhenIdle", None,
rider.getID(), "Rider Status is Wrong.")
raise Exception("The rider status and dict not match.")
class Dispatcher:
# Sync timestamp for logging
timestamp = -1
def __init__(self):
#logger in Dispatcher
self.__logger = Logger('Dispatcher')
self.__logger.setLevel(logging.DEBUG)
self.__logger.info(Dispatcher.timestamp, "__INIT__", None, None, "Create A Dispatcher Object")
#Storage for drivers and riders
self.__driver_dict = {}
self.__rider_wait_dict = {}
self.__rider_serve_dict = {}
self.__rider_finish_dict = {}
self.__rider_cancel_dict = {}
#Performance of driver and rider
self.wait_rider={}
self.no_work_driver={}
self.idle_driver_before_match={}
self.grp_in_4=0
self.grp_in_3=0
self.grp_in_2=0
self.grp_in_1=0
#Cluser Strategy
self.__cluster_strategy = ClusteringByDir(self.__rider_wait_dict)
#Matching Strategy
self.__match_strategy = MatchingInQueue(self.__driver_dict, self.__rider_wait_dict, self.__rider_serve_dict)
#Driver Status Tracker
self.__driver_tracker = DriverStatusTracker(self.__driver_dict)
#Rider Status tracker
self.__rider_tracker = RiderStatusTracker(self.__rider_wait_dict, self.__rider_serve_dict, self.__rider_finish_dict, self.__rider_cancel_dict)
#Driver Dict
for zone_id in range(1,78):
self.__driver_dict[zone_id] = {}
#Rider Dict
for zone_id in range(1,78):
self.__rider_wait_dict[zone_id] = {}
for dir_id in range(-1, 12):
self.__rider_wait_dict[zone_id][dir_id] = defaultdict(dict)
#
for cycle in range(SIMULATION_CYCLE_START, SIMULATION_CYCLE_END):
self.wait_rider[cycle] = []
self.no_work_driver[cycle] = []
for zone_id in range(0,78):
self.wait_rider[cycle].append(0)
self.no_work_driver[cycle].append(0)
def showDriverDict(self, zone_id):
ret = str(zone_id) + ": {"
for driver_id in OrderedDict(sorted(self.__driver_dict[zone_id].items(), key=lambda t: t[0])).keys():
ret = ret + driver_id + ", "
ret = ret + "}"
return ret
def getDriverFromDriverDict(self, zone_id, driver_id):
for id, driver in self.__driver_dict[zone_id].items():
if id == driver_id:
return driver
return None
def getDriverNumberOfZone(self, zone_id):
return len(self.__driver_dict[zone_id])
def showRiderWaitDict(self, zone_id):
ret = str(zone_id) + ": {"
for dir_id in self.__rider_wait_dict[zone_id].keys():
ret = ret + str(dir_id) + ": {"
for group_id in self.__rider_wait_dict[zone_id][dir_id].keys():
ret = ret + str(group_id) + ": ["
for rider_id in OrderedDict(sorted(self.__rider_wait_dict[zone_id][dir_id][group_id].items(), key=lambda t: t[0])).keys():
ret = ret + str(rider_id) + ", "
ret = ret + "], "
ret = ret + "}, "
ret = ret + "}"
return ret
def getRiderFromWaitDict(self, zone_id, dir_id, group_id, rider_id):
for id, rider in self.__rider_wait_dict[zone_id][dir_id][group_id].items():
if id == rider_id:
return rider
return None
def getGroupFromWaitDict(self, zone_id, dir_id, group_id):
for id, group in self.__rider_wait_dict[zone_id][dir_id].items():
if id == group_id:
return group
return None
def getRequestNumberOfZone(self, zone_id):
total_num = 0
for dir_id in self.__rider_wait_dict[zone_id].keys():
for group_id in self.__rider_wait_dict[zone_id][dir_id].keys():
total_num += len(self.__rider_wait_dict[zone_id][dir_id][group_id])
return total_num
def showRiderServedDict(self):
ret = "{"
for rider_id in OrderedDict(sorted(self.__rider_serve_dict.items(), key=lambda t: t[0])).keys():
ret=ret+str(rider_id)+", "
ret=ret+"}"
return ret
def getRiderFromServedDict(self, rider_id):
for id, rider in self.__rider_serve_dict.items():
if id == rider_id:
return rider
return None
def showRiderFinishedDict(self):
ret = "{"
for rider_id in OrderedDict(sorted(self.__rider_finish_dict.items(), key=lambda t: t[0])).keys():
ret = ret + str(rider_id) + ", "
ret = ret + "}"
return ret
def getRiderFromFinishedDict(self, rider_id):
for id, rider in self.__rider_finish_dict.items():
if id == rider_id:
return rider
return None
def showRiderCanceledDict(self):
ret = "{"
for rider_id in OrderedDict(sorted(self.__rider_cancel_dict.items(), key=lambda t: t[0])).keys():
ret = ret + str(rider_id) + ", "
ret = ret + "}"
return ret
def getRiderFromCanceledDict(self, rider_id):
for id, rider in self.__rider_cancel_dict.items():
if id == rider_id:
return rider
return None
#put driver into Driver Dict at start
def handleDriverIntoDict(self, driver):
if isinstance(driver, Driver):
if driver.getID() not in self.__driver_dict[driver.getPos()].keys():
self.__driver_dict[driver.getPos()][driver.getID()] = driver
else:
self.__logger.error(Dispatcher.timestamp, "handleDriverRequest", driver.getID(), None, "Driver has been in the Pool.")
raise Exception("Driver has been in the Pool.")
else:
self.__logger.error(Dispatcher.timestamp, "handleDriverRequest", None, None, "Driver's type is wrong.")
raise Exception("Driver's type is wrong.")
def handleRiderIntoDict(self, rider):
if isinstance(rider, Rider):
self.__cluster_strategy.cluster(rider)
else:
self.__logger.error(Dispatcher.timestamp, "handleRiderRequest", None, None, "Rider's type is wrong.")
raise Exception("Rider's type is wrong.")
def matchRidertoDriver(self):
for zone_id in self.__rider_wait_dict.keys():
for dir_id in self.__rider_wait_dict[zone_id].keys():
for group_id in self.__rider_wait_dict[zone_id][dir_id].copy().keys():
driver = self.__match_strategy.match(zone_id)
if driver is not None:
self.__logger.info(Dispatcher.timestamp, "matchRidertoDriver", driver.getID(), None, "Driver be Chosen to Serve Riders.")
self.__logger.debug(Dispatcher.timestamp, "matchRidertoDriver", None, None, "Driver Zone ===> Rider Zone: ", str(driver.getPos()) + "===>" + str(zone_id))
# update driver status
driver.setRiders(self.__rider_wait_dict[zone_id][dir_id][group_id])
self.__driver_tracker.updateDriverStatusAfterMatching(driver)
self.__logger.debug(Dispatcher.timestamp, "matchRidertoDriver", driver.getID(), None, str(driver))
#update rider status
if len(self.__rider_wait_dict[zone_id][dir_id][group_id]) == 4:
self.grp_in_4 += 1
elif len(self.__rider_wait_dict[zone_id][dir_id][group_id]) == 3:
self.grp_in_3 += 1
elif len(self.__rider_wait_dict[zone_id][dir_id][group_id]) == 2:
self.grp_in_2 += 1
elif len(self.__rider_wait_dict[zone_id][dir_id][group_id]) == 1:
self.grp_in_1 += 1
else:
self.__logger.warning(Dispatcher.timestamp, "calcPoolingPerformanceInWaitDict", None, None, "Grp len is 0.")
for rider in self.__rider_wait_dict[zone_id][dir_id][group_id].values():
self.__rider_tracker.updateRiderStatusAfterMatching(rider)
self.__logger.debug(Dispatcher.timestamp, "matchRidertoDriver", driver.getID(), rider.getID(), str(rider))
del self.__rider_wait_dict[zone_id][dir_id][group_id]
else:
self.__logger.info(Dispatcher.timestamp, "matchRidertoDriver", None, None, "No Driver is available.")
break
def updateDriverInDict(self):
for zone_id in self.__driver_dict.keys():
for driver in self.__driver_dict[zone_id].copy().values():
if driver.getStatus() == IDLE:
self.__logger.info(Dispatcher.timestamp, "updateDriverStatus", driver.getID(), None, "Update Driver when IDLE.")
self.__driver_tracker.updateDriverStatusWhenIdle(driver, self.no_work_driver)
elif driver.getStatus() == INSERVICE:
self.__logger.info(Dispatcher.timestamp, "updateDriverStatus", driver.getID(), None, "Update Driver Who is INSERVICE.")
self.__driver_tracker.updateDriverStatusWhenInService(driver, self.__rider_tracker)
self.__logger.debug(Dispatcher.timestamp, "updateDriverStatus", driver.getID(), None, str(driver))
else:
self.__logger.error(Dispatcher.timestamp, "updateDriverStatus", driver.getID(), None, "Driver Status is Wrong.")
raise Exception("Driver Status is Wrong.")
def updateRidersInWaitDict(self):
for zone_id in self.__rider_wait_dict.keys():
for dir_id in self.__rider_wait_dict[zone_id].keys():
for group_id in self.__rider_wait_dict[zone_id][dir_id].copy().keys():
for rider in self.__rider_wait_dict[zone_id][dir_id][group_id].copy().values():
if rider.getStatus() == WAITING:
self.__rider_tracker.updateRiderStatusWhenWait(rider, self.wait_rider)
self.__rider_tracker.checkRiderStatusIfTimeOut(rider)
def countTotalDriverNumber(self):
total_len = 0
for zone_id in self.__driver_dict.keys():
total_len = total_len + len(self.__driver_dict[zone_id])
return total_len
def countDriverNumberEachZone(self):
self.idle_driver_before_match[Dispatcher.timestamp] = [0]
for zone_id in self.__driver_dict.keys():
cnt=0
for driver in self.__driver_dict[zone_id].values():
if driver.getStatus() == IDLE:
cnt+=1
self.idle_driver_before_match[Dispatcher.timestamp].append(cnt)
def countRiderNumberInWaitDict(self):
total_len = 0
for zone_id in self.__rider_wait_dict.keys():
for dir_id in self.__rider_wait_dict[zone_id].keys():
for group_id in self.__rider_wait_dict[zone_id][dir_id].keys():
total_len = total_len + len(self.__rider_wait_dict[zone_id][dir_id][group_id])
return total_len
def countRiderNumberInServeDict(self):
return len(self.__rider_serve_dict)
def countRiderNumberInFinishDict(self):
return len(self.__rider_finish_dict)
def countRiderNumberInCancelDict(self):
return len(self.__rider_cancel_dict)
def countCurrentTotalRiderNumber(self):
return self.countRiderNumberInWaitDict() + self.countRiderNumberInServeDict() + self.countRiderNumberInFinishDict() + self.countRiderNumberInCancelDict()
def calcAverageProfitOfDrivers(self):
totalProfit = 0
for zone_id in self.__driver_dict.keys():
for driver in self.__driver_dict[zone_id].values():
totalProfit += driver.getTripProfit()
return totalProfit / self.countTotalDriverNumber()
def calcAverageIdleTimeOfDrivers(self):
totalIdleTime = 0
for zone_id in self.__driver_dict.keys():
for driver in self.__driver_dict[zone_id].values():
totalIdleTime += driver.getIdleTime()
return totalIdleTime / self.countTotalDriverNumber()
def calcAverageTripEffortOfDrivers(self):
totalTripEffort = 0
for zone_id in self.__driver_dict.keys():
for driver in self.__driver_dict[zone_id].values():
totalTripEffort += driver.getTripEffort()
return totalTripEffort / self.countTotalDriverNumber()
def calcAverageWaitTimeOfRiders(self):
totalWaitTime = 0
riders = {**self.__rider_serve_dict, **self.__rider_finish_dict, **self.__rider_cancel_dict}
for rider in riders.values():
totalWaitTime +=rider.getWaitTime()
return totalWaitTime/(self.countRiderNumberInFinishDict()+self.countRiderNumberInServeDict()+self.countRiderNumberInCancelDict())
def calcAverageDetourTimeOfRiders(self):
totalDetourTime = 0
riders = {**self.__rider_serve_dict, **self.__rider_finish_dict}
for rider in riders.values():
totalDetourTime += rider.getDetourTime()
return totalDetourTime/(self.countRiderNumberInFinishDict()+self.countRiderNumberInServeDict())
def calcAverageFareOfRiders(self):
totalFare = 0
riders = {**self.__rider_serve_dict, **self.__rider_finish_dict}
for rider in riders.values():
totalFare += rider.getPrice()
return totalFare/(self.countRiderNumberInFinishDict()+self.countRiderNumberInServeDict())
def calcAverageDefaultFareRiders(self):
totalDefaultFare = 0
riders = {**self.__rider_serve_dict, **self.__rider_finish_dict}
for rider in riders.values():
totalDefaultFare += rider.getDefaultPrice()
return totalDefaultFare/(self.countRiderNumberInFinishDict()+self.countRiderNumberInServeDict())
def calcAverageSatOfRiders(self):
totalSat = 0
riders = {**self.__rider_serve_dict, **self.__rider_finish_dict, **self.__rider_cancel_dict}
for rider in riders.values():
totalSat += rider.getSat()
return totalSat/(self.countRiderNumberInFinishDict()+self.countRiderNumberInServeDict()+self.countRiderNumberInCancelDict())
class Simulation:
def __init__(self):
self.__logger = Logger('Simulation')
#self.__logger.setLevel(logging.DEBUG)
self.__logger.info(-1, "__INIT__", None, None,
"Create Simulation Object.")
self.__driver_list = RequestList()
self.__rider_list = RequestList()
self.__dispatcher = Dispatcher()
self.__cycle = 0
self.__sim_time = []
def importData(self, ):
ImportData.importDriverData(FILENAME_D, self.__driver_list)
ImportData.importRiderData(FILENAME_R, self.__rider_list)
def run(self):
#Run simulation cycle
for self.__cycle in range(SIMULATION_CYCLE_START,
SIMULATION_CYCLE_END):
# Synchronization the time with Modules(Driver, Dispatcher, Rider, and so on)
self.__logger.info(self.__cycle, "RUN", None, None,
"1. Synchronizing Time With Each Module.")
#Dispatcher Module
Dispatcher.timestamp = self.__cycle
ClusteringStrategy.timestamp = self.__cycle
MatchingStrategy.timestamp = self.__cycle
DriverStatusTracker.timestamp = self.__cycle
RiderStatusTracker.timestamp = self.__cycle
#Driver Module
Driver.timestamp = self.__cycle
RoutingStrategy.timestamp = self.__cycle
#Rider Module
Rider.timestamp = self.__cycle
#Import Module
RequestList.timestamp = self.__cycle
ImportDemandEvaluation.timestamp = self.__cycle
# Start simulation time of this cycle
print("The Cycle Number: ", self.__cycle)
#print("Time: ", ImportDemandEvaluation.time)
# Put the driver requests to dispatcher (The Driver List)
self.__logger.info(
self.__cycle, "RUN", None, None,
"2. Put Drivers' Requests To Dispatcher From RequestList.")
while not self.__driver_list.is_empty():
curr_driver = self.__driver_list.remove()
self.__logger.debug(
self.__cycle, "RUN", None, None,
"Current Driver Moved into Dict of Dispatcher: ",
str(curr_driver))
self.__dispatcher.handleDriverIntoDict(curr_driver)
self.__dispatcher.countDriverNumberEachZone(
) #count idle driver number before match
# Put the rider requests to dispatcher (The Rider List)
self.__logger.info(
self.__cycle, "RUN", None, None,
"3. Put Rider' Requests To Dispatcher From RequestList.")
while not self.__rider_list.is_empty(
) and self.__rider_list.first_element().getRequestTimeStamp(
) == self.__cycle:
curr_rider = self.__rider_list.remove()
self.__logger.debug(
self.__cycle, "RUN", None, None,
"Current Rider Moved into Dict of Dispatcher: ",
str(curr_rider))
self.__dispatcher.handleRiderIntoDict(curr_rider)
#Show dispatch dicts
print("waiting, serving, finished, canceled: ",
self.__dispatcher.countRiderNumberInWaitDict(),
self.__dispatcher.countRiderNumberInServeDict(),
self.__dispatcher.countRiderNumberInFinishDict(),
self.__dispatcher.countRiderNumberInCancelDict())
#match driver and rider by dispatcher
self.__logger.info(
self.__cycle, "RUN", None, None,
"4. Match Riders' Request to AN Appropriate Driver.")
self.__dispatcher.matchRidertoDriver()
# Update simulator's states
self.__logger.info(self.__cycle, "RUN", None, None,
"5. Update State of Simulator.")
self.__dispatcher.updateDriverInDict()
self.__dispatcher.updateRidersInWaitDict()
#Show up results
self.__logger.info(self.__cycle, "RUN", None, None,
"6. Show Up All Results of this Cycle.")
#print(self.__dispatcher.cancel_rider)
#print(self.__dispatcher.no_work_driver)
#if self.__cycle % SHOWN_INTERVAL == 0 and self.__cycle != SIMULATION_CYCLE_START:
# self.showPerformanceMetrics()
#print("\n")
self.showPerformanceMetrics()
print("Simulation Terminated.\n")
#self.drawMonitorDict(self.__dispatcher.wait_rider, self.__dispatcher.no_work_driver)
def drawMonitorDict(self, monitor_dict1, monitor_dict2):
for time1, item1 in monitor_dict1.items():
for time2, item2 in monitor_dict2.items():
if time1 == time2:
#plt.figure(figsize=(30, 20))
fig, (ax1, ax2) = plt.subplots(2, figsize=(30, 20))
fig.suptitle(str(time1))
ax1.plot(item1[0:78],
label='Wait Rider# after match',
color='r')
ax1.plot(item2[0:78],
label='Idle Driver# after match',
color='b')
ax1.set_xticks(np.arange(0, 78, step=1))
ax1.set_yticks(np.arange(0, 300, step=20))
ax1.set_ylabel("driver#")
ax1.legend()
ax2.plot(self.__dispatcher.idle_driver_before_match[time1],
label='Idle Driver# before match',
color='b')
ax2.set_xticks(np.arange(0, 78, step=1))
ax2.set_yticks(np.arange(0, 300, step=20))
ax2.set_xlabel("zones")
ax2.set_ylabel("driver#")
ax2.legend()
plt.savefig(SAVE_PATH.format(time1))
plt.close()
def showPerformanceMetrics(self):
print("\n")
print("The Number of Riders occured so far: ",
self.__dispatcher.countCurrentTotalRiderNumber())
print("The Number of Drivers: ",
self.__dispatcher.countTotalDriverNumber())
print("The Number of Cycles: ", self.__cycle)
print(
"***************************************************************")
print("Driver Performace Metrics:")
print("Average Revenue: ",
round(self.__dispatcher.calcAverageProfitOfDrivers(), 2))
print("Average Trip Effort: ",
round(self.__dispatcher.calcAverageTripEffortOfDrivers(), 2))
print(
"Average Profit: ",
round(
self.__dispatcher.calcAverageProfitOfDrivers() -
COST_PER_CYCLE *
self.__dispatcher.calcAverageTripEffortOfDrivers(), 2))
print(
"Average Utilization: ",
round(
(260 - self.__dispatcher.calcAverageIdleTimeOfDrivers()) / 260,
2))
print(
"***************************************************************")
print("Rider Performace Metrics:")
print("Average Waiting Time (Cycles): ",
round(self.__dispatcher.calcAverageWaitTimeOfRiders(), 2))
print("Average Detour Time (Cycles): ",
round(self.__dispatcher.calcAverageDetourTimeOfRiders(), 2))
print("Average Fare: ",
round(self.__dispatcher.calcAverageFareOfRiders(), 2))
print("Average Default Fare: ",
round(self.__dispatcher.calcAverageDefaultFareRiders(), 2))
print(
"***************************************************************")
print("System Performace Metrics:")
print(
"Serving Rate: ",
round(
1 - self.__dispatcher.countRiderNumberInCancelDict() /
self.__dispatcher.countCurrentTotalRiderNumber(), 2))
total = self.__dispatcher.countRiderNumberInServeDict(
) + self.__dispatcher.countRiderNumberInFinishDict()
print("Pooling Rate in 4: ",
round(self.__dispatcher.grp_in_4 * 4 / total, 3))
print("Pooling Rate in 3: ",
round(self.__dispatcher.grp_in_3 * 3 / total, 3))
print("Pooling Rate in 2: ",
round(self.__dispatcher.grp_in_2 * 2 / total, 3))
print("Pooling Rate in 1: ",
round(self.__dispatcher.grp_in_1 / total, 3))
print(
"***************************************************************")
