Fast painting of traffic lights and street lights

Prize: 6,000 €

Status: completed


Some city services are truly labor intensive which, together with the growth of cities and the city halls’ tight budgets, make it hard for the city to look clean and tidy at all times.

The challenge:

One of the most labour intensive maintenance works is the regular painting of the street furniture. The most repetitive case is the painting of traffic lights and streetlights in coastal cities, where the weather accelerates the rusting.

The painting requires a truck with a hydraulically operated lift platform to be able to access the top, which usually blocks one or two lanes. For this reason, the painting needs to be during the night.

The characteristics of the paint of these street elements are the following:

  • Surface to be painted: 7,2 to 10 m2

  • Weight of required paint: 1-1,5 Kg for roller paint, 3-4,5Kg for spray paint

  • Approximate maximum height:  6m for traffic lights, up to 12m for street lights

  • Diameter of the post: in between 50mm and 250mm

  • Tipical model: conical post of galvanised carbon steel with arm

See some models: (English) e.g. page 31 (Spanish) e.g. page 36


What we are looking for:

A solution that drastically improves the productivity of the current hand-painting process is needed. Semi-automation or complete automation can be implemented, either by incorporating elements on the truck or by creating autonomous robots, among other ideas.

The solution will be assessed in terms of efficiency (how much it improves the current productivity levels), and in terms of annual operating expense (including amount of paint required per element), maintenance and initial investment.

It will also be taken into account how much the solutions affects the traffic.

Evaluation Criteria:

Submissions will be assessed according to the following criteria:

•        Time required for the painting.

•        Level of investment

•        Amount of paint required.

•        Hours per worker needed.

This is a 1-round tournament with the following submissions:

•         Proposed painting process description.

•         3D drawing of the required equipment and/or tools.

•         Feasibility evidence.

•         Business case.


Deadline for submissions: 26th February 2018

Evaluation: 4 weeks

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