Dear iRAP Team and Fellow Coders,
I would appreciate clarification regarding the coding relationship between Intersection Quality, Pedestrian Crossing Facility Quality, and Delineation in the following scenario.
A three-way intersection is present on the roadway and can be confirmed through satellite imagery. However, from the driver’s perspective, the intersection is not readily recognizable in the survey imagery due to the absence of advance warning signs, intersection-related traffic control devices, or other features that clearly identify the location as a public road intersection. The side road could potentially be perceived as an access road or driveway until the driver is very close to the conflict point.
In this situation:
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Intersection Quality
Would it be appropriate to code the intersection quality as Poor, considering that drivers are not provided with sufficient advance information to anticipate the intersection, even though the physical intersection itself is visible once reached?
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Pedestrian Crossing Facility Quality
If a pedestrian crossing facility is present on the side road at the intersection, should the quality of the crossing also be influenced by the lack of advance warning and recognition of the intersection itself? In other words, if drivers are unlikely to anticipate the intersection, would it be appropriate to consider the pedestrian crossing facility quality as Poor/Defective, despite the crossing markings being physically visible?
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Delineation
The roadway contains visible centre lines, lane markings, and edge lines. However, there are no advance warning signs or other delineation elements informing drivers of the upcoming intersection and associated pedestrian activity.
When assessing delineation, should the absence of these supporting signs and warning devices be considered in addition to the pavement markings? Would it therefore be reasonable for delineation quality to be rated lower even when the lane markings themselves are adequate?
My understanding from the Coding Manual is that delineation is based on a combination of pavement markings, delineation devices, and signage, and that these attributes should collectively assist drivers in recognizing upcoming road and intersection conditions.
I would appreciate any guidance on how these three attributes should be assessed when the primary issue is not visibility of the physical features themselves, but rather the driver’s ability to recognize and anticipate the upcoming intersection and pedestrian conflict points.
Thank you in advance for your insights.
