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.')
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.')