#Traffic signals download

The default configuration can be overwritten by a specific definition e.g.

Using the phases key without a specification will set the default configuration for all traffic_signals in this relation. If turn:lanes are available in the from way, the traffic_signal can be assigned to a specific lane because the same keywords are used.ĭescribes the duration of each phase of the traffic signals. This clarifies the destination of a specific turn since that is not always obvious for complex intersections. Through, slight_right, right, sharp_right, crossing(see below)}Īdditionally the value crossing instead of the mentioned turn values can be used to define the timing and the occurrence of a pedestrian crossing traffic signal. Slight_left, merge_to_left, merge_to_right, The vales of the turn key introduced in Key:turn are used as identifiers Example:įor every turn possibility there should be a to-way specified. If the same way continues after the node (the node is not at the end of the way) clarification can be achieved by from:forward= * or from:backward= *. If the node is tagged at the crossing and the way ends at the node, the driving direction the traffic signal applies to is obvious. One from-way has to be included in the relation. It represents the geographic location of the traffic signals. One node with the key highway= traffic_signal. The way where the turning ends specified for every turn The incomming way arriving at the signal. This relation includes the traffic-signal node, one incoming way (from-way), one to-way, and optional via-ways which connect the from- and the to-way in complex intersections.Ī node with the tag highway='traffic_signal' which represents the signal regulating this turn relation. Please note that one intersection can comprise more than one node. For flexibility the concept of using relations is a very helpful and a powerful tool.Īn Intersection with traffic_signals shall be represented through one relation per incoming way. Intersections are built in many different ways and the modelling in OSM at the moment does not always reflect the real world. Also for traffic simulation it would be a huge benefit and cities could become more efficient. OSM should provide a best practice to model those in order to help routing application developers. Routing algorithms will be considering traffic signal phases in the not too distant future. The relation specifies the duration of red and green light phases for every turn possibility and specifies the outgoing- (to-)way We suggest to use relations similar to the turn restriction relation but for every incoming way to an Intersection.

Modelling the phases of each traffic signalĬurrent discussions on this topic are often resulting in increasing the geometric complexity of intersections by mapping each lane individually.

Putting all traffic signals in complex multi node intersections into relation to their corresponding destination- (to-)way.

Two factors are missing in the current modelling:

#Traffic signals download

For more information about Eugene’s traffic signal system, download a traffic signal fact sheet.This proposal introduces an easy way to model traffic signals at any kind of intersections in a more detailed way. When new timing plans are developed for signals not connected to the computer, crews must enter the timing data at the traffic signal controller box located at the intersection. In addition, new traffic signal timing plans can be downloaded from the central office to the traffic signals. Malfunctioning traffic signals are more quickly detected and the problem assessed if they are connected to the central system. Our ultimate plans are to have all city maintained traffic signals connected to the central computer. The 197 traffic signals indicated by green dots on the traffic signal map are connected to the City’s traffic signal computer system using city-owned interconnect cables that are underground in some areas and overhead on utility poles in other areas.

The City of Eugene has 240 traffic signals. To report a malfunction of a traffic signal, please call 54 or call 9-1-1 after business hours.