Civil Engineering Reference
In-Depth Information
Table 22.3 Experiences in six cities with managing parking ratios, Circa 1988
City
Downtown
employment
(population)
Parking
supply
CBD parking
rates
CBD parking policy
CBD trafc mitigation
Key ndings
Los
Angeles,
CA
200,000
127,000
spaces off-
street
(projected)
up to $0.50/h
off-street
Minimum ratios
(spaces per 1,000 ft
2
):
2
Employer trip reduction
plans required under
Regulation XV (Southern
CA air quality mandate)
Peripheral parking
options not exercised
by developers
3 citywide,
reduced to 1.0 in CBD
-
(SMSA 3.3 million)
(81,300
open to
public, with
5,000 on-
street)
up to $l/h
on-street
Developers in certain
areas can provide up to
75 % of parking at
remote locations
Trip reduction plan
average vehicle employee
ridership (AVR) target of
1.75 persons/vehicle
Many traf
c
mitigation plans not
very good or effective
If project >100,000 ft
2
in certain areas,
must
provide 25
CBD employee mode
share 25 % transit,
60 % drive alone
40 % of
parking off-site
-
Denver,
CO
118,000
71,000
greater-
CBD
spaces,
mostly
private off-
street (open
to public)
$60
-
80/mo.
$0.50/half h
Minimum ratio (spaces
per 1,000 ft
2
) for ofce
2.0 citywide, except no
CBD maximum or
minimum
Essentially none
—
note
that parking requirements
not
set to encourage transit
or ridesharing
Some developers
provide as little as
0.25 spaces per
1,000 ft
2
in CBD
(Denver 491,000)
off-street,
public
Peripheral parking
allowed as alternative
Price breaks for car and
vanpools in certain city
facilities
Transit mode share
28 % for core area
employees; 13 % for
greater downtown
(SMSA 1.6 million)
$0.20
-
$1/h
on-street
Density bonuses for
CBD parking
above
70 % of non-CBD ratio
Peripheral parking
provided, but little
used and hard to
monitor
