Target Vacancies

The target_vacancies table is used by the development location choice model. It gives the model information about acceptable vacancy rates. The table has one row for each year the simulation runs. Each row gives target values for the residential and nonresidential vacancies for that year, which are defined below. Only data after the base year is used. Note that you can use either the building_type_id or the is_residential attribute to set target vacancy rates, or a combination of them. At least one of them must be used.

Column Name Data Type Required Description
building_type_id Integer N Unique id of the building type
is_residential Integer N 0 for non-residential, 1 for residential building types
target_vacancy_rate Float Y The ratio of unused space to total building space
year Integer Y The simulation year

In urbansim_zone.configs.urbansim_zone.xml, under the Model Manager section, in the run method of development_project_transition_model, the argument target_attribute_name is set to "target_vacancy". If this is the case, I believe the above named column "target_vacancy_rate" should be changed to "target_vacancy" to match the default run argument.

-- JesseAyers - 05 Jan 2010

 

-- FirouzehNourzad - 07 Dec 2009

Topic revision: r4 - 05 Jan 2010 - 16:29:40 - JesseAyers
 
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