Road Sign Management scenario in Korea
Scenario description
Road signs in Korea follow some specific guidelines and regulations for their positioning and the information they display. By integrating the data about the points of interest (POI), the road signs (RS) and the road topology (taken from ?OpenStreetMap OSM) in the area of Seoul, the demonstrator is able to display the related information on a map and to assess the validity of the information displayed on each road sign.
Algorithm to assess the validity of road signs
The algorithm, starting from a road sign, finds and follows the links indicated by the turning directions displayed on the road sign and checks the consistency of the following road sign or checks if the indicated target POI is reached.
A road sign is considered valid under the following conditions:
- If there is a following road sign which indicates the same target POI; OR
- If the end node of the last link indicated by the road sign direction is near to the target POI.
A road sign is considered invalid under the following conditions:
- If next road sign, in the direction indicated by the current road sign, does not contain the target POI; OR
- If the last link indicated by the road sign direction ends the road or is a junction which is not near to the target POI.
GUI of the demonstrator
Legend for demo colors
- nodes of the road topology are indicated as small red dots
- links of the road topology are indicated as blue lines
- points of interest (POI) are indicated as white markers with "PoI"
- road signs (RS) are indicated as markers with "RS"; their color is:
- light blue if the road sign is simply displayed and not yet checked for validity
- green with a little yellow star if it is checked and valid
- red if the road sign is checked and not valid
- junctions are indicated as purple markers with "JC"
- Junction marker is used for representing same node while nodes from each direction road as junction do not share exact same node each other.
Demo videos
LarKC Road sign management Demo LarKC_RSM_Demo.avi
LarKC Road sign management Demo explained LarKC_RSM_Demo_Nar.avi
Codec for Demo TSCC_codec.exe
Mirror site of Demo videos mirror
Additional Files
Seoul Road sign management storyboard and workflows WP6_RoadSignManagement_Storyboard_workflow_20100609.pptx.
Korean road sign Regulation 1 KoreanRoadSignRegulation.docx.
Korean road sign Regulation 2 NamingPlaceOnKoreanRoadSign.docx.
Korean road sign Regulation 3 SelectingPositionOfKoreanRoadSign.docx.
Source Code for Seoul Road Sign Management
Seoul Road sign management LarKC platform/workflow and Web ServerRSMLarKC&WebServer.zip.