This bike has an integral lock for securing the bike while parked. The lock is a steel cable that also serves as the frame "down tube" (running from near the peddles diagonally upward toward the handle bar area). If a thief cuts the cable the frame is weakened and the bike becomes unridable.


Mistake-proofing category: preventing the influence of mistakes
Setting function: Physical
Regulatory function: Shutdown
Source: Off-the-shelf


Secondary Problems (side effects, weakness or concerns) with this example:

Vandalism vulnerability: bike can rendered definitely unridable very quickly, possibly as quicly as one squeeze of a cable cutter tool. Ten of these lined up could be taken out in seconds, then vandal is on his way. This level vandalism takes much longer with conventional bikes.


Sources of Supply:

See also:

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