Trouver les lacunes dans les données des poteaux d'éclairage

Question

J'essaie de résoudre un problème où je dois trouver des lacunes dans nos données d'éclairage public. Je dois avoir des lampadaires à tous les deux poteaux, aux intersections de rues et aux impasses/cul-de-sacs. J'ai un ensemble de données de tous les poteaux (avec et sans lumières), un ensemble de données des poteaux avec lumières, et un ensemble de données des lignes centrales des rues et des intersections. En utilisant l'outil buffer, j'ai pu trouver toutes les intersections qui n'ont pas de lampadaires dans un rayon de 50 pieds autour d'elles. <\/P> Comment devrais-je procéder pour résoudre le problème des lampadaires à tous les deux poteaux ? Cela inclut les situations où il y a des poteaux/lampadaires de l'autre côté de la rue. <\/P>

RobertKrisher · Answer

Switch the order of input/near parameters in your GP tool. You want the poles to each find their nearest road (then use the near_x and near_y), doing it the other way around means that each road will only find its nearest pole 🙂 Specifying a reasonable threshold is always a good idea.

One of the biggest limitations of this approach is going to be how streetlights are captured in intersections (which street do they get assigned to?), but this approach will work well for long running stretches of road.

BenWilkerson89 · Answer

Thank you Robert for the suggestion! I did as you suggested but it didn't generate a point on the centerline for every pole as I thought it would. It only generated them at random intervals. As I hope you can see from the attached images, there are more poles that adjacent to the centerlines but it's not grabbing those. Do I need to set a search radius?

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Brochure_Acueducto_Reduccion perdida agua_SPX_ESP.pdf

CNMOC Change Management Plan DRAFT.docx

NebraskaCounties-PopulationDensityAndTowns.pdf

RobertKrisher · Answer

You could use the generate near table tool to identify the street centerline closest to each pole, and by turning on the Location option it will include the location on the centerline. You can then create a point layer from the coordinates in your near table (remembering the ID of the line), and join in the information from your pole layer whether it has a streetlight or not. That should make it much easier to visually review the centerline data.