Transcript IENG 471 Lecture 09: Personnel Planning

IENG 471 - Lecture 09
Personnel Planning - Parking
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Assignments
 Current Assignment:
 HW 5: Team Assignment, 2 people per team, turn in 1 HW set per team.
 b.) assume separate restrooms, industrial facility (non-foundry) and assume
they want minimal space increase
 Next Assignment:
 Prep for Exam II Parking Lot Problem, 2 people per team – see last slide
for today
 Measuring tools are in the MIL Lab (IER 310) on the South blue pegboard
 Return the tools ASAP
 Layout the parking lot according to the handout heuristic
 Show your work (for your OWN benefit)
 Put this on EP paper for your use on the second exam and keep it in your
engineering notebook.
 Exam dimensions and design constraints may be similar, but different.
 Good idea to clearly document what you did, so you can adapt your model
for the exam quickly.
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Parking Lot Design
 Goals vary depending on Facility purpose
 Examples:
 Airport
 Regional Hospital
 Home Improvement Store
 Supermarket (no drive up)
 Manufacturing Plant
 College Campus (commuter school)
 College Campus (pedestrian mall)
 Military Base
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Parking Lot Design

General Rules of Thumb:
Local zoning regulations tend to be more restrictive, and
supersede most guidelines (they may also be negotiated)
2.
OSHA / other standards may (indirectly) impact lot design
3.
500 feet is usually the maximum walking distance for
regular patron access to the facility
4.
2% to 5% of capacity are Handicapped accessible spaces
5.
33% of spaces are allocated to compact cars
6.
Increased area for parking decreases time for parking & deparking (increases parking spot turns)
7.
Angular configurations increase parking spot turns
8.
Perpendicular parking often increases lot space utilization
9.
Required aisle space increases with the parking angle
10. Vehicle sizes change over time
1.
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Parking Lot Design

Steps of Lot Design Heuristic:
1.
Determine the number of vehicles to be parked
2.
Determine the space required for each vehicle type
3.
Determine the available space for parking
4.
Generate alternative parking layouts for alternative
parking patterns (lots may have alternative uses)
5.
Select the best layout to maximize space utilization
and regular patron convenience
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Using the Parking Design Tables
 Recommendations for Stall Widths
 (Table 4.1 from Parking Lot Design Handout link on Materials Page)
 Small car use:
 All-day parker:
 Standard car:
 Luxury/elderly:
 Supermarket:
 (also campers)
 Handicapped:
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7.5 to 8 feet
8 to 8.5 feet
8.5 to 9 feet
9 to 10 feet
10 to 11 feet
11.8 to 12.2 feet
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Using the Parking Design Tables

Parking Module Widths
 (See top of Parking Lot Design handout from Materials Page)
 Three Module Groups (relates stall width, module width, parking angle)
 G1:
 G2:
 G3:
Small Cars
Standard Cars
Large Cars
 Four Module Types (gives width of module, including aisle)




W1:
W2:
W3:
W4:
Single Loaded, Wall-to-Wall
Double Loaded, Wall-to-Wall
Double Loaded, Wall-to-Centerline
Double Loaded, Centerline-to-Centerline
 Parking Width (PW) is based on Parking Angle (θ) and Stall Width (SW):
 Used to
find the
required
lot depth
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PW 
SW
sin()
SD
PW
SW
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Maximized Utilization Heuristic Steps
 Align Module Width to Lot Width
 Layout using largest parking angle possible, preferring W4




modules to maximize space utilized per module
Layout remaining space with largest W module that can be
accommodated, and then use largest parking angle possible
Reduce space in least efficient module to accommodate
handicap or special case allocations, if allowable
Reduce spaces available at aisle ends for required crossaisles and lot entrances / exits
Use Parking Width and remaining module lengths to compute
the total number of vehicles accommodated
 Align Module Width to other lot dimensions and
repeat (best orientation might be neither perpendicular nor parallel)
 Select the “best” of the layout options
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Questions & Issues
 Exam II Parking Lot Design Problem (prepare ahead for exam!):
 Measure the IER parking lot AND the gravel area to the East for:
 Location of utilities, side walks, building entrances & walls – considering
them to be Monuments
 Monuments are things that cannot be removed or relocated – like pillars
 Dimensions to the nearest foot (rounding down)
 Assume curb cuts, sign posts & foliage can be moved
 Assume the width of the level part of the curb cut is the same as the
width of a cross aisle (if any cross aisles are needed)
 Using the Parking Lot Design handout, design the most efficient lot
possible if the strategy for the lot is to allow quick turnover, and:
 90o parking must use the stall width midpoints, others can use smallest stall widths
 2% of the stalls are handicapped accessible (use largest stall width)
 10% of the stalls are for compact vehicles
 10% of the stalls are for large vehicles
 Bumpers can overhang the sidewalks to the South and East, but not the West
 Bumpers cannot encroach on the alley, or the garbage truck will hit them!
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