Scheduled Development Events Model (SDEM)

Objective

The Scheduled Development Events Model (SDEM) handles development events (projects) that are scheduled to happen in specified simulation years.

Algorithm

It modifies the buildings table according to specified action of each events in the scheduled_development_events table. See the sample scheduled_development_events table below for actions that are supported.

Configuration

OPUS path to model code

urbansim.models.scheduled_events_model

Model Parameters

The configuration of the SDEM in the zone model system is summarized in the following table:

Element	Setting
Dataset	Buildings
Model Type	User specified, deterministic

Data

scheduled_development_events table is used by the Scheduled Development Events Model. Below is a sample scheduled_development_events table that demonstrates the functions of scheduled_development_events_model. The optional notes column explains what each event does. Column year, action, attribute, and amount is required; users can remove one or all columns building_id, zone_id,building_type_id or add extra columns that are primary or computed attributes of building dataset.

year	action	attribute	amount	building_id	zone_id	building_type_id	__notes__
2010	add_value	residential_units	5000	1009	-1	-1	add 5000 residential_units to building 1009
2010	subtract_value	non_residential_sqft	100000	1009	-1	-1	reduce 100000 non_residential_sqft from building_id 1009
2011	set_value	residential_units_capacity	10000	7002	-1	-1	set the residential_unit_capacity to 10000 for building 7002
2011	multiply_value	average_value_per_unit	1.2	-1	700	-1	multiply the average_value_per_unit by 1.2 for all buildings in zone 700

-- LimingWang - 25 Jan 2010