Table 2

Evaluating parameters . | Sectorised (DMA) network . | Non-sectorised (non-DMA) network . |
---|---|---|

Average water age (all nodes) (hours) | 55 | 46 |

Average water age (non-dead-end nodes) (hours) | 23 | 20 |

Standard deviation of water age (all nodes) (hours) | 24 | 27 |

Standard deviation of water age (non-dead-end nodes) (hours) | 12 | 10 |

No. of nodes with stagnation (dead-end nodes) | 7,930 (65%) | 6,065 (50%) |

Length of pipe with max diurnal velocity below 0.06 m/s (continuous sedimentation) (m) | 190,902 (55%) | 149,190 (43%) |

Length of pipes with max diurnal velocity between 0.06 m/s and 0.2 m/s (m) | 43,795 (13%) | 22,600 (7%) |

Length of pipes with max diurnal velocity above 0.2 m/s (self-cleaning) (m) | 109,001 (32%) | 171,908 (50%) |

Length of pipes with min diurnal velocity below 0.06 m/s (intermittent sedimentation) (m) | 299,324 (87%) | 105,605 (31%) |

Length of pipe experiencing flow reversal (m) | 2,933 (1%) | 36,933 (11%) |

Length of pipes with max/min velocity ratio of equal or greater than 1.5 | 286,789 (84%) | 252,197 (73%) |

Length of pipes with max/average velocity ratio of equal or greater than 1.5 | 250,174 (73%) | 162,435 (47%) |

Evaluating parameters . | Sectorised (DMA) network . | Non-sectorised (non-DMA) network . |
---|---|---|

Average water age (all nodes) (hours) | 55 | 46 |

Average water age (non-dead-end nodes) (hours) | 23 | 20 |

Standard deviation of water age (all nodes) (hours) | 24 | 27 |

Standard deviation of water age (non-dead-end nodes) (hours) | 12 | 10 |

No. of nodes with stagnation (dead-end nodes) | 7,930 (65%) | 6,065 (50%) |

Length of pipe with max diurnal velocity below 0.06 m/s (continuous sedimentation) (m) | 190,902 (55%) | 149,190 (43%) |

Length of pipes with max diurnal velocity between 0.06 m/s and 0.2 m/s (m) | 43,795 (13%) | 22,600 (7%) |

Length of pipes with max diurnal velocity above 0.2 m/s (self-cleaning) (m) | 109,001 (32%) | 171,908 (50%) |

Length of pipes with min diurnal velocity below 0.06 m/s (intermittent sedimentation) (m) | 299,324 (87%) | 105,605 (31%) |

Length of pipe experiencing flow reversal (m) | 2,933 (1%) | 36,933 (11%) |

Length of pipes with max/min velocity ratio of equal or greater than 1.5 | 286,789 (84%) | 252,197 (73%) |

Length of pipes with max/average velocity ratio of equal or greater than 1.5 | 250,174 (73%) | 162,435 (47%) |

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