4
By Lab Timothy R. Hord II
Answers and Methodology
1. In this map, I first created a 5 mile buffer around the area of interest, the hospital. I created a separate layer from this. Next, I selected by location all of the tracts that have their centroid within the buffer layer. I created a layer from this also. I then selected all tracts within the buffer and looked at the statistics based on the total population and it gave me a sum total for the total population in each tract. Finally, I labeled the tracts by total population and created my map. I applied the same technique to answer the other questions: Total Pop. Around Roche = 185,519 Total Pop. Around Ford = 353,154 Total Pop. Around St. Joseph = 119,708 2. I applied the same technique to this map as I did for the first map. I selected by location the tracts that fell within 10 miles from Ohio and in Ohio based on my selection of Ohio. I used the buffer tool within the select by location function. I then ran statistics on the selected tracts based on the total population and found the answer. In this map, I also labeled the tracts with total population. Finally, I created the map. Total Pop. In Daft Region = 711,951 3. Again, same type of technique. First select by location, apply buffer to Ann Arbor. Then, select by location but I used remove from selection option and applied buffer to Detroit this time. Both times I selected the option of the tracts having their centroid within. After that, I was left with the answer. Finally, I created my Total map. Tracts within 50 Miles of Ann Arbor but not within 30 Miles of Detroit = 422 4. This one was slightly tricky. First, I selected all hospitals that fell within my area of interest. Then I did the same for the road network. I created separate layers for these. Next, I selected by attributes roads that are considered ave by their fetype. This greatly narrows down the selection. I created a layer from this as well. I then selected by location roads within .5 miles of hospitals. This gave me my final answer by looking at the count in the attribute table. Finally, I created my map. Total "Avenue" Classified Roads within .5 Miles of Toledo Hospitals = 92 5. This map by far took the most time. First, I created separate layers for hospitals in Michigan and tracts in Michigan by selection. Then I narrowed down the tracts by using the select by attribute function and made the median househ...