-
VEHICLE
INTELLIGENCE & TRANSPORTATION ANALYSIS LABORATORY
University of California, Santa Barbara
|
University of California, Santa Barbara
|
|
Initial analysis focuses on four geographic areas: (a) Los
Angeles-Orange County, (b) San Francisco Bay, (c) Santa Barbara County,
(d) all California. Maps for Santa Barbara County are currently highly
generalized because there are few census tracts in the area compared
with Los Angeles and San Francisco. In a later phase of the project,
Santa Barbara County will be studied in greater depth, at finer
geographic resolution.
1. Numbers of workers in the following categories are mapped at their place of work, based on NAICS (formerly SIC) encoded data from the Census Transportation Planning Package (CTPP):
| Edu/Health |
Manuf |
Public Admin |
Retail |
Other |
|
| Los Angeles/Orange |
Map | Map |
Map |
Map |
Map |
| San Francisco/Bay |
Map | Map | Map | Map | Map |
| Santa Barbara |
Map | Map | Map | Map | Map |
2. Travel time is estimated by analyzing stated travel time in the
CTPP. The CTPP reports two average travel times, peak and off-peak,
from each
census tract to every other. The faster
of the two is applied for accessibility modeling. For each origin
census tract, the maps show the
number of workers in each of the above occupation sectors that can be
reached in 20, 40 and 60 minutes. This is a preliminary measure of
accessibility to services in the various sectors, from each origin
tract.
| Edu/Health |
Manuf |
Public Admin |
Retail |
Other |
|
| Los Angeles/Orange |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
| San Francisco/Bay |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
| Santa Barbara |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
| California |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
20 min 40 min 60 min |
Further information
Kostas Goulias goulias@geog.ucsb.edu
Val Noronha noronha@ncgia.ucsb.edu
