[net.bicycle] cars and pedestrians

janc@uofm-cv.UUCP (Jan D. Wolter) (09/30/83)

Generally bicycle laws are made by automobilists.  (e.g., in Ann Arbor it
is a law that every bike must carry a "bicycle warning device", namely a
horn or a bell.  This law is not enforced because they discovered that
most bicyclists, when provoked, can issue loud and explicit warnings from
their larynxs.)  The problem of writing a bicycle traffic code was handled
in the same automocentric fashion:  the same vehical code that applies to
cars, applies to bicycles.  This actually works reasonably well, though
police still try to ticket bicyclists for not hugging the curb closely
enough.

Ann Arbor is also blessed with sidewalk bike paths (namely ramps in the curbs
at intersections) on most major streets and nearly all downtown streets.
When riding on these, a bicycle is considered a pedestrian.  (see how neat?
we've got automobilists and pedestrians--no bicycles.)  This also works
reasonably well.

The sport comes in the fuzzy zone when you're switching from one state
to another.  Liberally interpreted, these laws allow you wonderfull
opportunities:  for example, consider this intersection:

		   |   | |     ^     |           We have a major street going
		   |   | |     |     |           east, crossing a minor street
-------------------------+     Z     +---------- going north.  The cyclist is
						 at "A" heading east on the bike
main street					 path.  He wants to go north on
-  -  -  -  -  -  -  -  -            -  -  -  -  the side street "Z".  Suppose
 			 D->     		 the traffic light is red for
		        			 cars going east on the main
---------------------^---+           +---------  street.  The cylcist can cross
  |  C->   |	   | | | |           |		 as a peditrian at "B".  Suppose
--+        +-------+ B +-|   side    |---------  the light is green.  The
A->        bike path     |  street   |           cyclist uses the driveway "C"
-------------------------|           |---------- to merge into traffic, moving
			 |           |           over to the left turn lane "D".
						 He can now make a left turn.

The point is, that I can legally cross the main street regardless of the color
of the light, without waiting any longer than traffic requires.  All this by
being clever about when to be an "automobile" and when to be a "pedestrian".
Many similar examples exist.

This kind of thing can cause all sorts of problems too.  The law requires that
I signal my turns, but how do I distinguish "turning left onto bike path on
this side of the road" from "turning left onto bike path on far side of road"
from "turning left onto road"?  It makes a big difference to the automobilists.
Is it legal to make a left turn onto the bike path beside a road which is
one-way in the other direction?  It would seem so, but you are making a left
turn in an intersection where no automobilist expects anyone to make a left
turn.  The ambiguities that arise are truely baroque.  What fun!!

					Jan D. Wolter
					University of Michigan

P.S.  Turn signals are another example of automotive thinking.  When making
a tricky turn at high speeds in heavy traffic I'm supposed to let go of my
handlebar, surrendering most of my steering and braking, just so I can wave
my hand in the air?  No thanks.