STOP! Do you know where your street signs are? Doing street sign inventories with AgileMapper

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Do you know where your stop signs are? Or better yet, what condition they’re in? A street sign inventory can reveal just that!

A street sign inventory is an area of asset management with the sole purpose of creating an inventory of all traffic-related signage and pole mounts by documenting sign type, location, condition, reflective testing results, and other descriptors in order to cost-effectively manage these assets.

Street signs are a vital component of road safety because they provide drivers with rules, instructions, and information. By knowing the location and condition of these signs, you can better ensure the safety of drivers in your municipality.

Street Sign Requirements

Sign inventories are not only important for road safety, but they are also helpful for certain testing and minimum guidelines that are required by the Federal Highway Administration (FHWA).

In 2012, the FHWA’s Manual on Uniform Traffic Control Devices released updated minimum requirements regarding the retroreflectivity of road signs all municipalities must adhere to. 


Retroreflectivity is a property that enables light to be reflected back to the original light source, like headlights, in dark conditions so drivers can see street signs at night. Sign condition and retroreflectivity degrade over time as weather, sunlight exposure, and environmental damage affect the surface. 

Sign pole mounts can also become bent or uprooted due to traffic accidents, weather, or other damaging factors.

Inventories are an efficient way to locate and monitor the condition, including retroreflectivity and pole mount conditions, of signs.

Some municipalities establish sign inventory programs to better facilitate the management of these road adjacent assets. For example, the Pennsylvania Department of Transportation established a Sign Inventory and Management program for all of its municipalities to follow in order to adhere to MUTCD’s updated requirements. This program includes guidelines for the inventory and a computer-based system for cataloging and documenting the results.

Modern advances in mapping and artificial intelligence (AI) are making sign inventories easier than ever before.

Digitize Your Sign Inventory

While street sign inventory and retroreflectivity testing must be completed manually, the cataloging, assessment, planning, and management of those assets can be an efficient and simple process. 

RoadBotics AgileMapper maps the location of your visual street sign data, whether it’s along or above the road. Using AI, these interactive maps empower you to make data-driven decisions about sign maintenance and replacement.

Begin by using the AgileMapper smartphone application to collect pictures of your street signs. Alternatively, you can upload existing visual data directly to the platform. The pictures will automatically populate on the AgileMapper desktop application map based on the geolocation data associated with it.

From there, RoadBotics AI will tag all the assets it identifies in the pictures, including the printed words on the signs. You can also create custom tags and assign them to the maps or individual pictures. For example, you can create tags for sign type, sign ID, condition, retroreflective rating, age, and more.

Advanced filtering and reporting capabilities allow you to identify the signs in need of repair or replacement, and generate work orders to complete the project. For example, use the search function to filter by a condition rating, and all of the street signs tagged with that rating will populate in points on the map and the corresponding images will appear to the left. You can clearly see both the location and the current condition of the signs. 

With AgileMapper’s advanced AI and mapping capabilities, street sign inventories and management are streamlined in one easy to use platform. 

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