Civil Engineering Reference
In-Depth Information
Table 2.1 Intra metropolitan origin/destination of commuter travel, 2,000 (million of trips)
Central city
employment
destinations
Suburban
employment
destinations
Total trip
origins
Commuter trips
originating in central city
24.5
27.40 %
7.5
8.40 %
32
35.80 %
Commuter trips
originating in the suburbs
16.6
18.50 %
40.9
45.70 %
57.5
64.20 %
Total trip
destinations
41.1
45.90 %
48.4
54.10 %
89.5
100 %
Source
Reference [
4
], p 49, Fig. 3.3, 2,000 data
Table 2.2 Mode share of metropolitan commuters (2,000)
Destined to central city
(%)
Destined to suburbs
(%)
Trips originating in central city
Drive alone
62
Drive alone
76
Carpool
12
Carpool
18
Subtotal car
74
Subtotal car
94
Transit
15
Transit
5
Bike
1
Bike
0
Walk
5
Walk
0
Work at home
3
Work at home
na
Other
2
Other
1
Trips originating in the suburbs
Drive alone
82
Drive alone
79
Carpool
11
Carpool
12
Subtotal car
93
Subtotal car
91
Transit
6
Transit
1
Bike
0
Bike
0
Walk
0
Walk
3
Work at home
na
Work at home
5
Other
1
Other
1
Source
Reference [
4
], p 81, Fig. 3.40 and 3.42, 2,000 data
It should be noted, however, that the above values are averages for all metro-
politan areas
from the largest to the smallest. There is a large difference, however,
in transit share between the largest and smallest metro areas, as shown in Table
2.3
.
The transit share of downtown trips of the 15 metro areas in Table
2.3
, ranges
from 76.5 % for New York with a downtown worker density of over 351,000
commuters per square mile, to 3.8 % for Austin with a downtown density of 80,000
commuters per square mile.
—
