ITE Journal April 2018 - 43

Figure 2. This shared parking scenario that shows that up to 137 rail commuters could be accommodated in a garage of a residential development
adjacent to a rail station that is 28 minutes from downtown Manhattan.
In most cases, residential parking facilities reach their 100
percent occupancy only around midnight. This means that in
an office/residential mix, there will always be room early in the
morning and in the evening for office employees arriving early
in the morning or leaving later in the evening. Sharing parking
resources can therefore happen organically without special signage.
The only exception may be projects with few parkers (in the range
of 10 to 20 spaces) where statistically it may be more likely that all
residents may be home at, say, 7 p.m. on certain days.

Scourge of Assigned Parking Spaces
One of the main obstacles to shared parking is the frequent desire
to have assigned spaces for residential owners or tenants, and
sometimes for other users as well. This is often presented as a "local
market" condition, i.e. that the residential tenants in that particular
area require an assigned or reserved space. It is not uncommon
to hear a real estate broker stating that he/she could not rent an
apartment without assigned parking. Yet, one or two towns away
there may be mixed-use developments where residential tenants and
office employees happily share a common parking facility. Some of
the most expensive apartments and condominiums in the United

States do not have assigned parking spaces, and in fact do not
have any parking associated at all. Whether assigned parking is a
market requirement, a tradition or a myth, it is expected that these
conditions may change as automobile related demographics change.
It is likely that we will see more apartment tenants that will have
no car to park (whether they are millennials bicycling, walking, or
using transportation network companies, or elderly persons not
wanting to drive anymore). The presence of shared cars (like Zip
cars) will also be more common in our future parking facilities.
These changes are likely to affect the attitude toward assigned
parking spaces.
Besides the potential of shared parking, there are other benefits
associated with residential parking facilities that do not assign
parking spaces. Occupancy surveys conducted at 3 a.m. have shown
that in larger residential developments one can always expect that
5 to 15 percent of the vehicles assigned to parking spaces are out
on business travel, vacation, or other travel purposes. There is also
a sharing benefit between residents and visitors if parking spaces
are not assigned: Resident cars peak at night when the number of
visitors is very low, and visitors peak during the day and evening
when resident cars are not at their peak. It is not uncommon to see
w w w .i t e.or g

Apri l 2018

43


http://www.ite.org

Table of Contents for the Digital Edition of ITE Journal April 2018

President’s Message
Director’s Message
People in the Profession
ITE News
Technical Programs Division Spotlight
Get Ready for Minneapolis!
Ethics Column: Responsible Engineer
Member to Member: Sammy Xiaoming Chen, Ph.D., P.E., PTOE, PTP
Where in the World?
Calendar
Industry News
New Products
Love My Hood: Kitchener’s Resident-Led Traffic Calming Program Advances Safety and Placemaking
Placemaking through a Traffic Signal Box Art Project: Effect of Artist Wrap to Cabinet Temperature
Shared Parking: Effective and Simple
Relationship between Geometric Elements and Wrong-Way Crashes at Partial Cloverleaf Interchange Terminals
Professional Services Directory
ITE Journal April 2018 - 1
ITE Journal April 2018 - 2
ITE Journal April 2018 - 3
ITE Journal April 2018 - President’s Message
ITE Journal April 2018 - 5
ITE Journal April 2018 - Director’s Message
ITE Journal April 2018 - 7
ITE Journal April 2018 - People in the Profession
ITE Journal April 2018 - 9
ITE Journal April 2018 - 10
ITE Journal April 2018 - 11
ITE Journal April 2018 - ITE News
ITE Journal April 2018 - 13
ITE Journal April 2018 - Technical Programs Division Spotlight
ITE Journal April 2018 - 15
ITE Journal April 2018 - Get Ready for Minneapolis!
ITE Journal April 2018 - 17
ITE Journal April 2018 - Ethics Column: Responsible Engineer
ITE Journal April 2018 - 19
ITE Journal April 2018 - 20
ITE Journal April 2018 - Member to Member: Sammy Xiaoming Chen, Ph.D., P.E., PTOE, PTP
ITE Journal April 2018 - 22
ITE Journal April 2018 - Calendar
ITE Journal April 2018 - New Products
ITE Journal April 2018 - 25
ITE Journal April 2018 - 26
ITE Journal April 2018 - Love My Hood: Kitchener’s Resident-Led Traffic Calming Program Advances Safety and Placemaking
ITE Journal April 2018 - 28
ITE Journal April 2018 - 29
ITE Journal April 2018 - 30
ITE Journal April 2018 - 31
ITE Journal April 2018 - Placemaking through a Traffic Signal Box Art Project: Effect of Artist Wrap to Cabinet Temperature
ITE Journal April 2018 - 33
ITE Journal April 2018 - 34
ITE Journal April 2018 - 35
ITE Journal April 2018 - 36
ITE Journal April 2018 - 37
ITE Journal April 2018 - 38
ITE Journal April 2018 - Shared Parking: Effective and Simple
ITE Journal April 2018 - 40
ITE Journal April 2018 - 41
ITE Journal April 2018 - 42
ITE Journal April 2018 - 43
ITE Journal April 2018 - 44
ITE Journal April 2018 - Relationship between Geometric Elements and Wrong-Way Crashes at Partial Cloverleaf Interchange Terminals
ITE Journal April 2018 - 46
ITE Journal April 2018 - 47
ITE Journal April 2018 - 48
ITE Journal April 2018 - 49
ITE Journal April 2018 - Professional Services Directory
ITE Journal April 2018 - 51
ITE Journal April 2018 - 52
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