managing travel for planned special events - FHWA Operations ...

Table 6-36Portable Traffic Management SystemComponentsCOMPONENT• Surveillance camera• Changeable message sign• Highway advisory radio• Detection devices• Weather sensor• Flood lights• Power source (e.g., solar)Figure 6-51 presents an example, based onan intersection serving a Daytona InternationalSpeedway parking area, of achievingintersection turning movement lane balance.The plan shows three competing trafficflows that, with proper channelization applied,have unimpeded access to one receivingstreet segment. Given four receivinglanes, the channelization limited the numberof approach lanes to four. When planning touse traffic cones or other channelizing devicesfor intersection traffic control, markoutdevice locations prior to the event forfast and accurate placement on the day-ofevent.CCTV6OVERVIEWIntersection Traffic ControlA proactive approach toward developingstrategies for controlling intersection trafficduring a planned special event aims to:• Increase intersection traffic handling capacity.• Improve the orderly movement of traffic.• Prevent crash occurrences.The key to maximizing capacity involvessimplifying traffic movements and minimizingthe number of traffic signal phases. Atypical 4-leg intersection has 32 conflictpoints. After prohibiting all left-turnmovements and cross-street through movements,the same intersection has just 4 conflictpoints. As shown in Figure 6-50, lanechannelization limits competing intersectiontraffic flow which, in turn, facilitates continualflow into a parking area access road orother road segment (e.g., alternative lanesection).Figure 6-50Elimination of Competing IntersectionTraffic FlowFigure 6-51Turning Movement Lane Balance (18)Stakeholders can also reduce the number ofcompeting intersection traffic flow movementsby initiating a planned road closure.Figure 6-52 illustrates this tactic, where lawenforcement blocked a venue ingress routeto facilitate event traffic egress through anintersection.Advance signing of permitted intersectionmovements improves the orderly movementof traffic. This particularly applies to casesDAY-OF-EVENT ACTIVITIES ADVANCE PLANNINGPOST-EVENT ACTIVITIESEVENT PROFILE6-57