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SSR Refresher October 2025
Quiz by Mark Lester Diacos
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
​A sign is detected on both MM and GT, but on MM there are no splines connected to it. According to the rules, how should this case be tagged or annotated?
Tag it as MISSING DP, since the sign exists but no corresponding DPs are present.
Ignore the sign since no splines are connected to it.
Connect the sign manually to any nearby spline.
Tag it as FALSE DETECTION because there’s no DP connection.
​A CE sign is detected on MM, but when checked on GT, it shows a different sign. What does this indicate?
Both signs should be tagged to ensure coverage.
It’s a false detection, as the sign on GT is different.
The case should be marked as Missing DP.
The CE sign should still be tagged since it appears on MM.
A sign is detected on both MM and GT, but on MM there are no splines connected to it. According to the rules, how should this case be tagged or annotated?
A CE sign is detected on MM, but when checked on GT, it shows a different sign. What does this indicate?
A road indication sign showing a 110 speed limit is detected in the middle of the city, but it doesn’t match the actual road type. This is an example of a valid detection.
In this case, there is a 30 road sign that appears to be on a one-way road based on its orientation. However, GT and MM both show two DPs in opposite directions, indicating that the road is bi-directional. How should this case be handled?
In Aarhus, it’s common to find road signs that are reversed. If a reversed 60 sign is detected on the opposite side of the road and is barely visible from the driver’s direction, what should be done in this case?
An HWE sign was detected by MM; however, in GT, it appears to be an information sign indicating the direction toward the HWE, not an actual HWE entry. How should this type of sign be treated?
The arrow sign with a white background is an example of a supplementary sign for direction.
A 90 sign with a supplementary distance of 300 m cannot be found after the indicated distance. How should this case be handled?
In this case, the AIP connected the sign only to the specific DP indicated by the arrow, where the speed limit is affected. For example, the 3rd lane is set to 60 km/h, while the exit lane is set to 50 km/h. Is this tagging correct?
In this case, the residential area sign was detected twice by the Map Marker — once as the actual residential sign and again as the “20” within the sign. At the end of the residential area, a new “30 zone” sign is also present, which could confuse the algorithm about which sign to prioritize. What is the correct way to mark this case?
Is this an example of a supplementary sign for vehicle type?
