![]() ![]() The minor and low impact values indicate incidents that have progressively less impact as compared to incidents with the major value. The critical value indicates a road closure, and major indicates a blockage of multiple lanes. The Severity field in the traffic incident layers can have the following values: The IncidentType field in the traffic incident layers can have the following values: Red (stop and go)-0 to 45 percent of free flow speeds.Orange (slow)-45 to 65 percent of free flow speeds.Yellow (moderate)-65 to 85 percent of free flow speeds.Green (fast): 85-100 percent of free flow speeds.To travel when unencumbered by other vehicles. Speeds, which is typically the speed limit or how fast cars tend ![]() Traffic speeds in the service are displayed as a percentage of free-flow The traffic incidents are not archived and are refreshed with every update. This allows you to visualize traffic speeds within an 8-hour time window. The service archives the traffic information for up to 4 hours. This allows you to visualize traffic for future planning. Each traffic update also includes traffic speed predictions for the next 4 hours. The traffic data used by the service is updated every five minutes. If you want to emphasize why a particular route was returned by the route service, you can display the traffic map along with the route to show areas of traffic congestion that influenced the choice of roads used by the route. The traffic data used by the traffic map service is also used by the Routing services when performing analysis. The traffic map service acts as a good background layer to display the results from Routing services. The traffic speed and incident data is updated every five minutes. The traffic incidents in the map service provides the location of the incidents and some attributes such as the severity, the expected start and end time, as well as the description of the incident. Traffic visualization displays information about how travel speeds on specific road segments change over time. The final step is to add a legend and a brief description of the accident.You can use the traffic map service to visualize real time traffic speeds and incidents such as accidents, construction sites, or street closures. Show their course of travel and denote the point of the collision. ![]() Don't add extraneous items, as they will distract from the visual facts being presented. You'll want to include only the information that is important to the case. We'll also add a compass and our diagram information box from the SmartPanel. There was a temporary construction zone at the time of the incident, so these symbols are added next. ![]() This intersection features signals at each corner and an overhead traffic light at the center. Using the Line tool in the upper toolbar and the Roads and Intersections area in the SmartPanel, we'll add lane markings. Simply select the symbols you need from the SmartPanel, and stamp them onto your diagram. SmartDraw includes hundreds of symbols for everything you need in your accident reconstruction: cars, trucks, and vehicles of all kinds traffic signs and road markings, roadway objects, and more. Create this by clicking and stamping two T-Intersection symbols onto a blank page. This accident intersection features four north-south lanes and two east-west lanes of traffic. If you want to follow along but don't have a copy of SmartDraw, you may try it now, at no cost. In addition to using a template, you can also create your own custom accident reconstruction, as shown in this example. Here are just a few of the options available: Plus, when you're finished, you'll have a presentation-quality graphic.īegin by selecting from one of dozens of templates that cover multiple-lane roads, intersections, highways, freeways, parking lots, and many other settings. This is much easier and more accurate than trying to draw the scene by hand. Start with an accident reconstruction template. How to Draw an Accident Reconstruction Sketch ![]()
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