Thursday, October 30, 2014

Term Project Proposal

Term Project Proposal

For my final map I was interested in creating a dot density map for planned housing developments in the Dulles planning subarea of Loudoun County.  I chose this topic since, I've live in the Dulles area of Loudoun County for more than a decade and I have seen the population go from under 10,000 people to close to 60,000 in little over a decade.  There are currently around 19,000 housing units in Dulles as of 2014, as estimated by the Loudoun County Government compared to just over 6,000 in 2004, with over 12,000 to come.

The Dulles area remains one of the fastest growing subreas in Loudoun county and has become the second biggest sub area in terms of population in 2014.  As a result, much of the older rural agricultural infrastructure has struggled to keep up with this growth (I've seen my commute get worse within the past four years- close to 15,000 new neighbors within that time). The county and the state of Virginia has spent over $200 million dollars on just two projects in order to better improve infrastructure of area, with many smaller projects and many more to come.

As a result, I was interested in doing a dot density map reflecting current housing units and the planned housing units.

Here are some examples produced by Loudoun County's GIS department:
Change between 2010 and 2020:


These maps use a dot density style of mapping, but the dots are placed randomly within each zone instead of taking into account the actual density of housing units of each area (The above maps also reflect population- not housing units).  As a result, I would like to tackle that issue by more accurately placing the dots more closely based on actual developments and planned housing units (via the many available developer site plans and existing map images of communities).

For the base map I plan on using a regular Loudoun County base map, but zoomed in on the Dulles region of the county.  For reference I plan on using this planning sub area map to define the region I'll be working with.



The data is publicly available through the Loudoun County Government website with current estimated populations by subareas and planned/approved units by subareas (both from 2014).

http://www.loudoun.gov/index.aspx?nid=3188

http://www.loudoun.gov/index.aspx?nid=3249

The first goal will be to finalize the base map, then to review the pre-existing population centers to place the first layer of housing unit dots.  Afterwards, then the plan is to review major approved projects and their site plans to recognize where the heaviest planned development will be, and then place those on the map.  Finally, style elements will be implemented at the end.

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