Necesito ayuda para presentar el programa de reemplazo de tuberías del próximo año a la gerencia

Question

<\/HEAD>Hola a todos, <\/P> <\/P> Trabajo en un gobierno local y uno de mis roles es ayudar a elaborar el programa de renovación de la red principal de agua (y alcantarillado) para el próximo año. <\/P> <\/P> Tengo cada uno de nuestros segmentos de tubería mapeados, cada uno con un id de activo individual, año de instalación, material de construcción, diámetro, etc.<\/P> <\/P> Además, tengo otra tabla (unida por una relación 1-M) a cada una de las roturas o fallas registradas contra cada segmento de tubería. Y esto es en lo que la gerencia quiere que opine. Me han pedido presentar "una lista de las redes principales de agua que, basándose en el historial de roturas/fallas, deberían ser reemplazadas".<\/P> <\/P> Me pregunto si alguien más por ahí ha tenido un proyecto similar en el pasado, y ¿cómo lo presentaron? <\/P> <\/P> Podría simplemente ordenar mis tuberías desde el mayor número de fallas registradas hasta la menor cantidad, pero no creo que este sea el método más efectivo. <\/P> <\/P> ¿Alguien más puede proporcionar ideas sobre cómo recopilan y presentan esta información? <\/P> <\/P> Gracias por su tiempo.<\/P><\/BODY><\/HTML>

MartinPflanz · Answer

Ben,

Pipe scoring is quite a popular topic for water system groups!  I have seen the pipe score most commonly set by a weighted average of: material, age, and breaks.  That weighted average depends on how important each variable is at an organization - an older system may rank age differently then a newer system.  There are some secondary and, al be it, a bit more complicated variables such as criticality (if you lose this pipe how big of a deal is it? who is out of water? is delivery impacted? if so, by how much), pipe embedment type, installer, and also the normal operating pressure (normally high pressure or normally low pressure for that particular pipe).  Hydraulic analysis tools are available help evaluate the hydraulics questions.  Once you have the metrics for each pipe calc'd, consider using Insights for ArcGIS (Water Analytics) to ready the message for management's decisions.

~Martin

JoeBorgione · Answer

The scoring concept is interesting, so no that's not overly complicating things. You know you management better than I; what are they going to be looking for?  There are times the K.I.S principle wins too:  Keep It Simple.

The thing is, you are in the drivers seat here and if you present them with a couple different approaches, my guess is thier reaction is going to be ' Hmmm.  This guy is on to something...'

BenVan_Kesteren1 · Answer

Yeah thanks for that. There is another guy in my team who will be providing his list of pipes he wants repaired based on material+age calculation (no . So mine is purely a spatial question.

So I was thinking to make it 'fair' that I get the total length of the pipe, then divide it by the number of bursts, to get a 'score'. The higher the score the worse off the pipe. Does this make sense?

For example a pipe segment that is only 10m long, may have two bursts, and a pipe that is 1km long may also have two bursts, and I think the shorter pipe should be replaced before the 1km, as it has more bursts per lineal meter.

Does this make sense to others? Or am I over/under complicating it?

Thanks