taken as: the length of the design vehicle + 6 inches (for bumper - - PowerPoint PPT Presentation

▶

Nov 13, 2022 283 likes •398 views

2. Parking stall length and depth Parking length is measured parallel to the parking angle. It is generally taken as: the length of the design vehicle + 6 inches (for bumper clearance) For small cars: length= 175+6= 181 For

SLIDE 1

2. Parking stall length and depth
Parking length is measured parallel to the parking angle. It is generally

taken as: the length of the design vehicle + 6 inches (for bumper clearance)

For small cars: length= 175+6= 181’’
For large cars: length= 215+6= 221’’
Depth of the stall: is the projection of design vehicle length+ 6’’ bumper

clearance

For 90° parking stall, length=width
For other angles, depth < length

SLIDE 2

3. Aisle width
Must be sufficiently wide to allow drivers to enter and leave parking stalls

safely and in a minimum number of maneuvers

As stalls become narrower, the aisles need to be a bit wider
Aisles also carry circulating traffic and accommodate pedestrians walking to
r from their vehicles
Aisle width depends on the angles of parking and on whether the aisle

serves one-way or two-way traffic.

SLIDE 3

Parking modules

A “parking module” refers to the basic layout of one aisle with a set of

parking stalls on both sides of the aisle.

Ways to layout a parking module:
For 90° stalls, two-way aisles are virtually always used
In angle parking, vehicle may enter a stall in only one direction of travel and

must depart in the same direction, using either: – one-way aisles, stalls on both sides of the aisle, or – Two-way aisles, stalls on both sides of the aisle

SLIDE 4

Figure 12.8 Dimensional Elements of Parking Modules (Source: Used with permission of Institute of Transportation Engineers, Guidelines for Parking Facility Location and Design: A Recommended Practice of the ITE, Washington DC, 1994, Fig. 3, p. 6.) Single set of stalls against a wall Two sets of stalls against a wall

ne set of

stalls against a wall, another is interlocked two sets of stalls are interlocked

SLIDE 5

Table 12.10 Parking Module Layout Dimension Guidelines

SLIDE 6

Table 12.10 (continued) Parking Module Layout Dimension Guidelines

SLIDE 7

Parking garages

Parking garages are subject to the same stall and module requirements as

surface parking lots and have the same requirements for reservoir and circulation

Parking garages have the additional burden of providing vertical as well as

horizontal circulation for vehicles

A general design and layout that includes a ramp system

SLIDE 8

Ramping system fall into two general categories:

Clearway systems: ramps for inter-floor circulation are completely

separated form ramps providing entry and exit to and from the parking garage.

Adjacent parking systems: part or all of the ramp travel is performed on

aisles that provide direct access to adjacent parking spaces

SLIDE 9

Figure 12.10 Parking Garage Circulation Systems (Source: Used with permission of Eno Foundation for Transportation, Weant, R., and Levinson, H., Parking, Westport CT, 1990, Figs. 9.5– 9.16, pp. 188–192.)

SLIDE 10

Figure 12.10 (continued) Parking Garage Circulation Systems (Source: Used with permission of Eno Foundation for Transportation, Weant, R., and Levinson, H., Parking, Westport CT, 1990, Figs. 9.5 – 9.16, pp. 188–192.)

SLIDE 11

In some attendant-park garages and surface lots, mechanical stacking

systems are used to increase the parking capacity of the facility.

They are generally slow,
Most suited to longer-term parking durations, such as full day parking needs
f working commuters