Responding to incidents involving motor vehicle accidents is a
fundamental duty of all local government law enforcement agencies.
Understanding which areas of a community are more likely to experience
higher levels of traffic incidents provides a significant advantage to
each department for implementing accident prevention measures that can
help to make the community safer.
To help with tracking the location and number of incidents occurring
with its community, the Village of Winnetka Police Department asked its
Geographic Information System (GIS) Department to start a monthly
mapping program using data recorded from officer incident reports
generated in the field. Mapping this information provides department
staff with a tool for visualizing the total number of incidents, as well
as potential problem areas. By providing a monthly map product, the
department can track the changes in incident levels throughout the year
and be more proactive in their efforts to educate drivers on problem
areas and implement preventative measures for reducing the danger of