**Q474.** This is one of a series of problems (469, 470, 471, 472, 473, 475, 476, 477, 478) relating to the same fictional case: The community of Ourville which is considering some options for creating parks to enhance the quality of life of local residents. The amounts are expressed in simple numbers – e.g., $100 – which you can assume to be referring to realistic amounts – e.g., hundreds of thousands.

The mayor of Ourville wants a more detailed analysis on option A. Apparently, the park could range in size from the very small to the very large. Budget concerns are not an issue for now. Examine the information below. What do you recommend and why? For example: What type of problem is this? What is the fundamental rule? How big should the park be?

### Talk/Comments/Feedback

**Difference Equations** DE01 notation | DE02 text2eqns | DE03 pn+1 chart | DE04 excel | DE05 de-and-etc | DE06 caveats |

**Flow Chart** FC01 text2chart | FC02 stepwise-refine | FC03 time-dol | FC04 diagnose | FC05 software | FC06 caveats |

**Decision Tree** DT01 probability | DT02 emv | DT03 text2chart | DT04 simple-tree | DT05 val-of-info | DT06 risk | DT07 imperfect-test | DT08 utility | DT09 concepts-terms | DT10 caveats |

**Cost Benefit** CBA01 basic-idea | CBA02 compute-nb-mb | CBA03 four-scenarios | CBA04 workflow | CBA05 concepts-terms | CBA06 caveats |

**Discounting** D01 basic-idea | D02cmpnd-int | D03 compute-NPV | D04 whence-DR | D05 curves | D06 concepts-terms | D07 caveats |

**Stock-n-Flow** SF01 concepts-terms | SF02 text2loop | SF03 text2sf | SF04 sf2de | SF05 describe-systems | SF06 software | SF07 caveats |

**Markov** MM01 general-idea | MM02 system-prereqs | MM03 text2matrix2diagram | MM04 2excel | MM05 concepts-terms | MM06 caveats |

**Linear Programming** LP01 concepts-terms | LP02 text2ineqalities | LP03 solve-graphically | LP04 excel | LP05 caveats |