The map display method in a communication type map display system and a communication type map display system

摘要

PROBLEM TO BE SOLVED: To make traffic jam notice information intelligible by using a traffic jam polyline that continues along road links showing a traffic jam for displaying a traffic jam, as to a communication-type map display system for displaying the state of a traffic jam on a map image.;SOLUTION: This map delivery server 30 includes a traffic jam information generating means 38 for acquiring road traffic information to prepare traffic jam polyline data along the road links and the traffic jam notice information related to the traffic jam polyline, and delivers the polyline data and the notice information to a map display terminal 20 in addition to vector map data. The display terminal 20 is equipped with a cursor control means 26 and a cursor selection/distinction means 27 to display the map image and the traffic jam polyline based on the map data received from the delivery server 30. The control means 26 displays a cursor on a display image plane while specifying a prescribed widthwise area wider than the line width of the displayed traffic jam polyline to determine whether the cursor is within the area or not.;COPYRIGHT: (C)2008,JPO&INPIT