Exemple #1
0
 def modify_zone_based_accessibility_into_cache(self, year):
     """ Modifies accessibility results from MATSim in 
         UrbanSim cache (zones table)
     """
     logger.log_status('Importing zone-based accessibility indicators from MATSim ...')
     
     existing_zone_data_set = ZoneDataset( in_storage=self.cache_storage, in_table_name=self.zone_table_name )
     
     for zone_id in range(1318,2042):
         # get row index of zone_id 
         index = existing_zone_data_set.get_id_index(zone_id)
         # get and modify car accessibility
         car_accessibility = existing_zone_data_set.get_attribute_by_index('car_accessibility', index)
         car_accessibility = car_accessibility / self.factor 
         existing_zone_data_set.modify_attribute('car_accessibility', car_accessibility, index )
         # get and modify walk accessibility
         walk_accessibility = existing_zone_data_set.get_attribute_by_index('walk_accessibility', index)
         walk_accessibility = walk_accessibility / self.factor 
         existing_zone_data_set.modify_attribute('walk_accessibility', walk_accessibility, index )
         # get and modify bike accessibility
         #bike_accessibility = existing_zone_data_set.get_attribute_by_index('bike_accessibility', index)
         #bike_accessibility = bike_accessibility / self.factor 
         #existing_zone_data_set.modify_attribute('bike_accessibility', bike_accessibility, index )
         # get and modify free accessibility
         #freespeed_accessibility = existing_zone_data_set.get_attribute_by_index('freespeed_accessibility', index)
         #freespeed_accessibility = freespeed_accessibility / self.factor 
         #existing_zone_data_set.modify_attribute('freespeed_accessibility', freespeed_accessibility, index )
     
     logger.log_status('Writing modified zone data to cache ...')
     flt_dir_for_next_year = os.path.join(self.cache_directory, str(year+1))
     out_storage = StorageFactory().get_storage('flt_storage', storage_location = flt_dir_for_next_year)
     existing_zone_data_set.write_dataset(attributes=existing_zone_data_set.get_known_attribute_names(),
                                          out_storage=out_storage,
                                          out_table_name=self.zone_table_name)
     
     logger.log_status('Finished modifying zone-based accessibility indicators in zone dataset.')
Exemple #2
0
 def modify_zone_based_accessibility_into_cache(self, year):
     """ Modifies accessibility results from MATSim in 
         UrbanSim cache (zones table)
     """
     logger.log_status('Importing zone-based accessibility indicators from MATSim ...')
     
     existing_zone_data_set = ZoneDataset( in_storage=self.cache_storage, in_table_name=self.zone_table_name )
     size = existing_zone_data_set.size()
     
     counter = 0
     
     for id in range(0,size):
         # get row index of id 
         index = existing_zone_data_set.get_id_index(id)
         faz_id = existing_zone_data_set.get_attribute_by_index(self.faz_id, index)
         
         # get original accessibility values
         car_accessibility = existing_zone_data_set.get_attribute_by_index('car_accessibility', index)
         walk_accessibility = existing_zone_data_set.get_attribute_by_index('walk_accessibility', index)
         bike_accessibility = existing_zone_data_set.get_attribute_by_index('bike_accessibility', index)
         freespeed_accessibility = existing_zone_data_set.get_attribute_by_index('freespeed_accessibility', index)
         
         # decrease accessibility 
         if int(faz_id) == int(self.faz_number_decrease_acc):
             
             counter = counter + 1
             
             # modify and store car accessibility
             car_accessibility = car_accessibility / self.factor 
             existing_zone_data_set.modify_attribute('car_accessibility', car_accessibility, index )
             
             # modify and store walk accessibility
             walk_accessibility = walk_accessibility / self.factor 
             existing_zone_data_set.modify_attribute('walk_accessibility', walk_accessibility, index )
             
             # modify and store bike accessibility 
             bike_accessibility = bike_accessibility / self.factor 
             existing_zone_data_set.modify_attribute('bike_accessibility', bike_accessibility, index )
             
             # modify and store  free accessibility
             freespeed_accessibility = freespeed_accessibility / self.factor 
             existing_zone_data_set.modify_attribute('freespeed_accessibility', freespeed_accessibility, index )
         
         # increase accessibility
         elif (int(faz_id) == int(self.faz_number_increase_acc_1)) or (int(faz_id) == int(self.faz_number_increase_acc_2)) or (int(faz_id) == int(self.faz_number_increase_acc_3)) or (int(faz_id) == int(self.faz_number_increase_acc_4)):
             
             counter = counter + 1
             
             # modify and store car accessibility
             car_accessibility = car_accessibility * self.factor 
             existing_zone_data_set.modify_attribute('car_accessibility', car_accessibility, index )
             
             # modify and store walk accessibility
             walk_accessibility = walk_accessibility * self.factor 
             existing_zone_data_set.modify_attribute('walk_accessibility', walk_accessibility, index )
             
             # modify and store bike accessibility 
             bike_accessibility = bike_accessibility * self.factor 
             existing_zone_data_set.modify_attribute('bike_accessibility', bike_accessibility, index )
             
             # modify and store  free accessibility
             freespeed_accessibility = freespeed_accessibility * self.factor 
             existing_zone_data_set.modify_attribute('freespeed_accessibility', freespeed_accessibility, index )
     
     logger.log_status('Writing modified zone data to cache ...')
     flt_dir_for_next_year = os.path.join(self.cache_directory, str(year+1))
     out_storage = StorageFactory().get_storage('flt_storage', storage_location = flt_dir_for_next_year)
     existing_zone_data_set.write_dataset(attributes=existing_zone_data_set.get_known_attribute_names(),
                                          out_storage=out_storage,
                                          out_table_name=self.zone_table_name)
     
     logger.log_status('Modified %d zones' %counter)
     logger.log_status('Finished modifying zone-based accessibility indicators in zone dataset.')