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Transportation Spending by Low-Income California Households ...

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Table 3.10 have lower expenditure figures than what we would find if we<br />

were able to look specifically at Bay Area households, but that the budget<br />

shares are fairly similar to actual transportation budget shares for San<br />

Francisco area households. However, we do not know for certain if this<br />

is true within each income group or just in the aggregate.<br />

Table 3.11 presents the sum of housing and transportation<br />

expenditures as a percentage of total expenditures. San Franciscans spend<br />

54 percent of their total budget on housing and transportation. The<br />

figure is about the same for Los Angeles, but San Diego has the highest<br />

share of spending on housing and transportation of all 28 metropolitan<br />

areas (58%). The percentage of the household budget going toward<br />

housing and transportation together for all metropolitan households in<br />

<strong>California</strong> is identical to that for the San Francisco Bay Area (54%).<br />

San Francisco has a similar number of vehicles per household to Los<br />

Angeles and San Diego. This is a somewhat unexpected finding, given<br />

that Census data show that public transit use is higher in the San<br />

Francisco Bay Area than in either of those metropolitan areas. With<br />

PUMS data, we calculate that 9.5 percent of employed adults in San<br />

Francisco commute <strong>by</strong> public transit compared to only 4.6 percent in<br />

Los Angeles and 3.3 percent in San Diego. Average public transit<br />

expenditures are higher in San Francisco than in these two other<br />

metropolitan areas, probably primarily because of greater transit use rates<br />

rather than higher fares, but we do not have individual-level data to<br />

verify that conjecture.<br />

Gasoline expenditures are higher in San Francisco than in Los<br />

Angeles and San Diego, but not <strong>by</strong> much ($100 per year or less).<br />

Vehicle purchase prices are higher in San Diego than in San Francisco or<br />

in Los Angeles. Other vehicle-related expenditures looked fairly<br />

comparable across the three MSAs, although these were slightly lower in<br />

San Diego. The PUMS data indicate that the percentage of households<br />

with access to a vehicle is either 90 percent or just above 90 percent for<br />

all metropolitan households in <strong>California</strong>.<br />

By investigating transportation expenditure data, this chapter finds<br />

that transportation expenditures constitute a fairly moderate portion of<br />

total expenditures for the average low-income household. However,<br />

37

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