An analysis of the KEEP CLEAR pavement markings effects on queuing vehicles dynamic performance at urban signalised intersections

KEEP CLEAR pavement markings are widely used at urban signalised intersections to indicate to drivers to avoid entering blocked intersections. For example, ‘Box junctions’ are most widely used in the United Kingdom and other European countries. However, in Australia, KEEP CLEAR markings are mostly used to improve access from side roads onto a main road, especially when the side road is very close to a signalised intersection. This paper aims to reveal how the KEEP CLEAR markings affect the dynamic performance of the queuing vehicles on the main road, where the side road access is near a signalised intersection. Raw traffic field data was collected from an intersection at the Gold Coast, Australia, and the Kanade–Lucas–Tomasi (KLT) feature tracker approach was used to extract dynamic vehicle data from the raw video footage. The data analysis reveals that the KEEP CLEAR markings generate positive effects on the queuing vehicles in discharge on the main road. This finding refutes the traditional viewpoint that the KEEP CLEAR pavement markings will cause delay for the queuing vehicles’ departure due to the enlarged queue spacing. Further studies are suggested in this paper as well.

State-of-the-practice retro-reflective measurement devices for pavement markings. Final report.

Federal Highway Administration, Washington, D.C.

Reflectivity and durability of epoxy pavement markings. Interim report.

Federal Highway Administration, Office of Research, Development and Technology, Washington, D.C.

Improved communication of a left exit lane drop using pavement markings.

Texas Department of Transportation, Austin

Automated road pavement marking detection from high resolution aerial images based on Multi-resolution image analysis and anisotropic Gaussian filtering

Road features extraction from remote sensed imagery has been a long-term topic of great interest within the photogrammetry and remote sensing communities for over three decades. The majority of the early work only focused on linear feature detection approaches, with restrictive assumption on image resolution and road appearance. The widely available of high resolution digital aerial images makes it possible to extract sub-road features, e.g. road pavement markings. In this paper, we will focus on the automatic extraction of road lane markings, which are required by various lane-based vehicle applications, such as, autonomous vehicle navigation, and lane departure warning. The proposed approach consists of three phases: i) road centerline extraction from low resolution image, ii) road surface detection in the original image, and iii) pavement marking extraction on the generated road surface. The proposed method was tested on the aerial imagery dataset of the Bruce Highway, Queensland, and the results demonstrate the efficiency of our approach.

Durable pavement marking materials: summary report of 1981 workshops.

Federal Highway Administration, Implementation Division, Washington, D.C.

Comparison of signs and markings for passing/no-passing zones. Executive summary.

Federal Highway Administration, Office of Research, Washington, D.C.

Raised pavement markers at hazardous locations. Final report.

Mode of access: Internet.

Comparison of signs and markings for passing/no-passing zones. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Evaluation of raised snowplowable pavement markers. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Passing and no-passing zones: signs, markings, and warrants. Final report.

Federal Highway Administration, Traffic Systems Division, Washington, D.C.

Snowplowable raised reflective pavement markers at hazardous locations in New Jersey.

Federal Highway Administration, Implementation Division, Washington, D.C.

Optimal placement of reflective pavement markers. Final report.

Ohio Department of Transportation, Columbus

Evaluation of snowplowable raised reflective pavement markers in New Jersey. Final report.

Federal Highway Administration, Washington, D.C.

A comparison of lighting, signing, and pavement marking methods for detecting rural intersections at night. Final report.

Ohio Department of Transportation, Columbus