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Summary of comparison of the three different methods in an urban context, for the main criteria used
| Time | Computer software/expertise needed | Cost | Advance preparation | |
| Spin-the-pen | +++ | - | - | - |
| GPS | ++ | +++ | ++ | ++ |
| Sample grid | + | +/- * | +/- * | + |
*Depending on whether software is used vs a hand-drawn grid.
