Signs
Traffic signs
MUTCD-coded, including US-generic and regional variants, with lane impact and road context on each detection.
[ World Intelligence · CityStream ]Your map is a snapshot.
Your map is a snapshot.
The road is not.
CityStream is a live read of the road network itself. Every vehicle that passes a location adds an observation, so the state of a sign, a surface, a lane or a work zone updates continuously instead of on a survey cycle. It is not a map you buy once. It is a feed you stay connected to.
[ What CityStream observes ]
Cities cannot manage what they cannot see.
CityStream catalogs road intelligence across four categories, unified in one feed.
Work zones
Construction and work zones
Where they are, when they appeared, and how that compares with what was filed.
Defects
Road conditions
Potholes, manholes, road plates and similar defects.
Surface
Road surface
Condition, and how it is deteriorating between observations.
[ Who is CityStream for ]
How can you use CityStream?
CityStream uses Empiric Earth’s nationwide sensor network to continuously detect, classify, and monitor changing road statuses.
ΦDOTs and city ops
ΔMapping and navigation
ΣAV and robotics
ΨInfrastructure
01 / 04 Open use case
ΦDOTs and city operations
Maintaining an inventory they cannot re-survey often enough.
Learn moreRoad inventory / observation freshness
[ Illustrative ]
02 / 04 Open use case
ΔMapping and navigation teams
Who need road state that is current rather than annual.
Learn moreSurvey cycle / continuous feed
[ Illustrative ]
Operating area / current conditions
[ Illustrative ]
Before / after, one corridor
[ Illustrative ]
[ Change detection ]
Measured change, not a static report
01
Because the same locations get observed again and again, CityStream reports the difference between this week and last rather than a single snapshot. A sign that came down, a work zone that appeared without a permit, a surface degrading over three months: each shows up as a change you can act on and, later, as evidence that an intervention worked.
02
Coverage follows where vehicles actually drive. A dense urban corridor refreshes constantly; a rural road refreshes when someone drives it. CityStream will tell you which one you are looking at rather than presenting both as equally fresh.
[ CityStream features ]
Advanced capabilities for real-time visibility
Live Feed
Fresh detections across all four categories for any bounding box.
Road Inventory
Curated inventory for a bounding box or a list of H3 cells.
Work Zones
A dedicated feed for construction activity.
Virtual Cam
Look at a location without putting a camera there.
[ Contact ]
See your roads more clearly
Tell us where you operate and we will look at what CityStream coverage is available.
Typically answered in 1–2 business days
[ Contact us ]
Typically replies in 1–2 business days.