Interstate 15 Corridor
Inter-Regional Partnership
GIS
A telephone survey of 2,010 adults residing in southwestern Riverside
County was conducted during July and August of 2002. This information, along
with pertinent land use, transportation and economic data, was used to develop
and evaluate strategies to bring housing and jobs into better balance in both
regions. Data from this survey also is being used to evaluate a similar, but
much more congested commute, from southwestern Riverside County into Orange
and Los Angeles counties along State Route (SR) 91 in a separately funded IRP
effort.
Data from this survey was used to establish the boundaries for the study area and study corridor. From the survey it was calculated that 95 percent of the persons commuting into the San Diego region were from the southwestern Riverside County area (from Lake Elsinore and Hemet south to the county line along I-15).
The survey information will be supplemented with information from the special Census Transportation Planning Package (CTPP) that will be available this year. The CTPP will provide more detailed information about the long-distance commute from southwestern Riverside County communities into employment centers in the San Diego region.
In addition to the telephone survey, the I-15 Inter-Regional Partnership drew information about the two regions and the travel between them from various existing data sources. Census information was used for information about the residents, households, and employment within the corridor as shown in Table 1 in the full report. Metropolitan area data bases for Southern California and San Diego were used to determine more detailed population and employment estimates.
The demographic database contains data sets and links to data sets on population,
housing, jobs, etc. for the San Diego and Riverside County regions, as well
as adjacent counties and the state as a whole. The data sets originate mostly
from the US Census 1990 and 2000 data, as well as population estimates from
SANDAG and WRCOG.