Automobile
manufacturers are teaming with city planners, traffic planners and highway
Engineers in the hopes of reducing urban traffic, parking demands, and
collision injuries and deaths on the nation's highways. Millions of dollars are
being sped to Research and Development to address those concerns.
The theory
of AV deployment is that such conveyances will not consume parking space
thereby reducing the capital costs of urban buildings. Vehicles will be
shared-use and be made available on demand like in traditional taxicabs, Uber
and Lyft services except without the cost of a driver.
The vast
number of collisions, injury and death on the nation's highways are the result
of driver error. The hypothesis is in one takes the humans out of the control
system then fatigue, distraction, aggressive behaviors and limited
reflex/reaction times will not be the cause of those injuries and death. Most
of all the effects of intoxication, responsible for fully half of highway
deaths, will be solved. These motives are admirable in and of themselves.
The
neglected motive for deploying AV is for people who cannot drive due to age,
poor eyesight, other disability or waning ability. For such people taxicabs and
other modern variants remain beyond the scope of the business model.
As with the
vast majority of business models the plan is to skim off the top the most
easily served customers and leave the remaining ones for someone else to
handle. The customer using a wheelchair has been relegated to an inferior
service model called Complementary Paratransit. "Complementary"
refers not to being free but being alongside fixed-route public transit.
Taxicab
operators have been slow or complete resistant to accessible vehicles for
wheelchair using customers even though since 1990 they have been under
regulation to serve persons with disabilities. They have not done so using the
logic "we don't do that." The Uber and Lyft operations have likewise
kept their model such that they do not serve the entire public. They only serve
the segment which they deem comfortable doing and profitable.
Urban-based
AV are going to be the next generation of automation to eliminate human
employment. Taxis and Ubers already serve the limited public who can enter and
exit the vehicle which it is still in the travel lane of the urban street.
Serving the remaining public is the challenge of AV developers.
Highway
driving AV will typically be owner-occupied. That is people will purchase an AV
and commute their 30-50 mile radius and make their occasional long-distance
inter-city trips. For them the AV is a convenience rather than a necessity.
Yes, the AV should significantly reduce the collision rate of such long trips.
The urban
circulation of people and vehicles will require 1,000s of hours of
"learning" for the AV to be effective. Fortunately such learning is
transferable from vehicle to vehicle unlike the learning process of a human
driver.
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Detroit's Automated People Mover |
For
persons with disabilities who have been neglected for decades, the AV promises
to be the difference between night and day. Unlike the general public, to
obtain individualized trips within a local region presently persons with
disabilities must apply for and be ruled eligible for Complementary Paratransit
services provided by a local transit agency. They must make a reservation one
or more days in advance. Such reservations must include the Origin, Destination,
desired Pickup time and anticipated return time. Then a shared ride vehicle
arrives within a 15 to 20 minute (earlier/later) time frame. Unlike shared use
vehicles where a multiple people use the same vehicle one after the other, this
ride will be shared ride with other passengers at the same time. Such
scheduling seeks to optimize the ride carrying capacity of the vehicle. The
passengers get no choice in how many people share their ride, where they are
going or for what reason.
AV which can
accommodate a wheelchair or two plus a few ambulatory passengers and that can
find the curb would be the solution many persons with disabilities have sought
for many decades.
The
development of an accessible AV system would have some typical characteristics.
- It
would be a minivan sized vehicle that can seat 2 wheelchairs and 3 or 4
ambulatory passengers in the primary passengers group.
- It
would have curb access with ramps on both sides of the vehicle to accommodate service on one-way streets.
- It
would not rely exclusively on voice commands to initiate and conclude a trip.
- It
would be able to find the curb and stop close enough to pickup and discharge
the passengers.
- It
would be able to recognize curbside barriers such as utility poles, trees,
parking meters, trash bins, benches, fire hydrants, mailboxes, etc. and not
stop there.
- It
would be able to attach a form of mobility aid securement to the aid if the
passenger or his designated assistant could not do it instead.
- Such
AV stock would be plentiful enough to afford persons with disabilities with the
same level of service, timeliness and reliability.
In order for
the promise of AV to be realized the users need to be inside the urban service
area. This means they will dwell there or will arrive there by other means than
a private automobile (AV or otherwise). This opens the market for vanpools,
biking, trains, walking and commuter buses. Some of those modes may also be
equipped with AI to operate them.
The scenario
of an sedan-sized AV being used to first make a long commute then go into
service as an urban circulator is a non-starter. Needing to store a car in the
city during the day also defeats the purposes of AV in the first place.
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Pittsburgh's Failed SKYBUS Project (Circa 1964) |
Some
cities already have driverless automated transit modes and have for many years.
Detroit's People Mover is such a system and is already 30 years old. It
operates in a 2.9 mile loop in the central city. Miami operates the Metro Mover
on 4.4 miles of elevated track. Both systems are electric and are fully
automated. Their usage helps define where future development will occur. In 1964, Pittsburgh, PA started the
controversial Skybus system. It was to be a fully automated rubber tire vehicle
which traveled on a concrete fixed guideway.
Even with a demonstration track in the South Hills the project lost
political favor and was cancelled.
AV for city
streets is a goal to bring such people moving capabilities to private seating
running on existing public rights-of-way. While that lofty goal is admirable,
cities will ultimately need to invest heavily in new architecture and amenities
to make AV a viable form of inner city transportation for everyone.