Abstract
Hotspot Analysis of Bus Accidents for METRO
Track: Transportation
Author(s): Jeff Neely, Julie Henry
Los Angeles County Metropolitan Transportation Authority (METRO) needed to create an Accident by Line Analysis tool. The tool was created to provide METRO with a semi-automated way to analyze and map bus accidents that have occurred over a thirteen month period. The application was developed to work with ArcGIS 9.1 and ArcSDE connecting to an Oracle database which is running on an AIX machine. Accident Analysis tool allows METRO to create points for every accident in a particular month. Geocoded points are appended to an existing ArcSDE layer which holds historic accident data. Accident points for the desired month are displayed in ArcMap using a definition query which, filters out the historic points and symbolizes the accidents based on the type of accident that occurred. Spatial Analyst is then used to create polygons that show accident clusters for the previous thirteen months.
Jeff Neely
METRO
One Gateway Plaza
Los Angeles , California 90053
United States
Phone: 213-922-4032
E-mail: NeelyJeffrey@metro.net
Julie Henry
ISSI
13879 Penn St
Whittier , California 90602
United States
Phone: 7148703278
E-mail: jhenry@issi-gis.com