Supposed you want to study the safety of the public schools in Prince George$$s County. You collected a

point GIS data layer of the car accidents $($i$.$e$.,$ the coordinates of the accidents, the coordinate system is

Maryland State Plane Coordinate System, unit: meter$)$ from the Police Department. Then you manually

collected the addresses of the schools in the form of $($address number, street name, street type, city, zip

code$).$ You also collected road network data from Maryland Department of Transportation $($coordinate

system: WGS$84,$ unit: degrees $($latitude & longitude$)).$ For each school, you want to use GIS to determine

the number of car accidents within $2$ miles to the school.

Question $3\mathrm{.}1$ Using the knowledge of Spatial Analysis and others that you learned during the semester,

write down the steps that you can finally produce the number of car accidents within $2$ miles to each

school. You don$$t have to consider how to implement the steps with a GIS system, but conceptually

write down the method$($s$)$ and briefly explain the expected result for each step. Note that there could be

different ways to solve this problem. $(1$ point$)$

Question $3\mathrm{.}2$ There are different data collection methods $($read the lecture slides$).$ What is the method

that you collected the car accidents data?