![]() ARCMAP MODEL BUILDER SEQUENCE OF ACTIONS PLUS(Instead of averaging the sales prices you may want to consider the building assessed value per gross square foot, plus perhaps, the land value per square foot of lotsize.) Use the Boston block shapefile (.\data\bosblocks05\blockmap05.shp) that was provided for Lab #5 - or, better yet, make your own block-level map for East Boston by dissolving the parcel boundaries that share the same block ID (called 'WPB' for ward, precinct, and block) on each side of the boundary. (1) Use the 'zonal statistics' tools to aggregate, at the block level, the housing values estimated from the raster surface that you developed in lab#5. Here are a few additional steps that you might try (but are not required parts of this lab exercise): However, the visualization was not particularly satisfying since the number of sales was relatively small and the variation in house cost/size sufficiently large to yield a surface that is more bumpy than we might consider realistic. Lab #5 demonstrated some raster techniques that helped us interpolate residential sales data from East Boston to develop a housing value 'surface' for East Boston. The last section of this lab provides the instructions to model housing value in East Boston in QGIS ![]() The primary focus will be the test next week and the homework sets (Set B due on Thursday and the database design Set C due March 23) Additional in-class notes are available here: lab6_inclass.txt Modeling Housing Value in East Boston Only a few parts of the suggested exercises need to be turned in. ARCMAP MODEL BUILDER SEQUENCE OF ACTIONS SOFTWAREAnother theme is to introduce you to an open source GIS software option, QGIS. A second theme is to expand our use of model building tools to include expanded datasets and spatial analysis interactions in our examination of metropolitan growth and redevelopment. One theme is to build on the visualization of East Boston land and housing values. The idea is to suggest several paths that build on what we have done in previous labs. Lab #6 will be more open-ended than the previous 5 labs, but most of the exercises are optional.
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