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FAST Dashboard - Performance Monitoring and Measurement System

http://bugatti.nvfast.org

 

Dashboard Homepage

FAST dashboard home page monitors and presents Las Vegas Metropolitan Freeway real time and historical traffic condition through Maps, Daily Peak Speeds, Time of Day Speeds, Average Speed and Congestion Plots from different perspective, as shown in the screenshot below.

Live Traffic Map

·         Live Traffic Map refreshes itself every minute by the detection data polled from the sensors implemented about 1/3 mile spacing along the freeways;

·         Crash / Construction / Incident information is updated real time by FAST TMC operators;

·         Full screen mode is better used for TMC monitoring or fleet dispatchers;

·         Yesterday or historical traffic can be reviewed by user-defined animation playback;

·         Segment and crash is clickable to show detail information.

 

 Daily Peak Speeds

·         Average, 15th and 85th percentile AM/PM peak speeds are plotted to show the monitored freeway traffic trend of the past two weeks;

·         Freeway performance reliability can easily be observed by the 15th and 85th percentile speed range.

 

Time of Day Speeds

·         Average, 15th and 85th percentile speeds of each 15-minute slice during the AM/PM peak are plotted to show the variances within peak hours;

·         Travelers can choose the best time to avoid the highest peak hour.

 

Average Speed

·         Overall freeway performance of the past 30 days, 30 to 60 days peak hours can be easily read from the speedometers;

·         Freeway performance improvement can be observed by comparing the speedometers of different time periods.

 

Congestion

·         Yesterday AM/PM peak congestion level can be perceived from the pie charts.

 

Live traffic map is also displayed on the FAST TMC Screen Wall to monitor and share the traffic & incident information.

 

Historical Traffic Animation

Historical traffic can be animated to review and evaluate the past performance. Every frame is a 15-minute integrated traffic snapshot.

·         User customizable date and time range;

·         Adjustable playback speed and time;

·         Movable clock, legend, and panels to better organize the layout;

·         Traffic incident will fly-into its location one hour before its occurrence; Flash during its happening; Fade-out after its clearance to show its residual impact.

 

Safety – Incident Management, Analysis, and Playback

FAST TMC operators monitor and report incidents to the public. Using the Dashboard’s “New Incident” page, TMC operators only need a few clicks on the map and pop-up window to compose and distribute detailed messages to the public. Key information of this incident is recorded, such as lane blockage, tow truck arrival time and lane clearance time, secondary crash or not, and severity. This information is very critical for traffic impact studies, TIM Coalition efforts, and quick-clearance benefit evaluation. The screenshot below shows the interface to add the incident. In just a few seconds, the incident can be added and with lots of key information being logged, and it will immediately show up on the live traffic map available to public. It greatly enhances FAST TMC operators’ quick response to the incidents.

                                                            Add Incident Interface

 

Incident Analysis

The incidents are logged in the Dashboard database. When using the “Historical Crash Analysis”, the key crash information is automatically analyzed spatially, temporally, by severity, and by clearance time. And the results are displayed by various charts, plots, graphs, tables and map. For example, under the spatial tab, the pie charts show the percentages of the crashes by corridor and by workzone. Also the table shows the top 10 crash locations. Under the temporal tab, the crashes are analyzed by day type, day of week, time of day, and peak periods. This page is only accessible to approved users.

                                                     Historical Incident Analysis

 

Incident Playback/Review

For particular incident, sometimes we need to review

·         How the incident is cleared;

·         How the emergency responders work on the scene;

·         What is the impact to traffic;

·         How long the queue is and how it dissipates.

 

When FAST TMC operators add an incident, the Dashboard triggers the camera snapshots archiving function. The snapshots are archived at 15-second intervals for one camera downstream of the segment and several upstream cameras depending on the location. Even after the incident is cleared, the Dashboard continues archiving for a certain period of time depending on the severity to monitor how the queue dissipates.

This function is extremely useful to evaluate the TIM Coalition’s Quick Clearance Program benefits. For example, on I-15 NB at Sahara Ave, a highly volatile freeway segment, we have determined that, due to TIM strategies, 35 to 45 percent of incidents are cleared from travel lanes in 10 minutes or less. And the snapshot playback tool is used by NHP emergency responders to review and enhance their work at the scene, for example whether a lane is blocked unnecessarily. The two snapshots below are the Historical Traffic Animation and Snapshots Playback page. Traffic incident icons will fly-into the crash location one hour before its occurrence; flash during clearance; and fade as traffic queues dissipate. This function is also useful to identify secondary incidents. The camera snapshots playback function is only accessible to approved users.

                                                     Historical Traffic Animation

                                                    Incident Snapshots Playback

 

Corridor

PMMS set up a series of nodes and divide Las Vegas Metropolitan freeways to corridors/sub-corridors, which helps traveler and professionals to follow specific freeway segments.

Corridor Dashboard

·         Similar dashboard shows the traffic condition of the specific corridor.

 

Corridor Contour

·         Corridor contour can present traffic conditions of long stretch of freeway over a certain time period on one graph;

·         Large amount of spatial and temporal traffic information can be observed at the same time;      

·         Traffic impact of incident/special event can be identified. Icon is clickable to show historical playback popup window;

·         Traffic pattern, trend, bottleneck, congestion level, impact of crashes can be easily observed;

·         Corridor origination and destination, date range, and measures are user customizable;

·         Measures include average speed, average lane volume, HOV or express lane speed and volume, general purpose lane speed and volume.

 

Congestion Story Book

·         User-friendly Interactive story book style;

·         Each page presents monthly typical congestion severity, extension and duration,  and travel times on Monday through Thursday, Friday, and weekend;

·         User can compare different months by selecting corresponding pages on the bottom.

 

Bottleneck Dashboard

·         Bottlenecks are predefined according to performance evaluation and field observation;

·         Dashboard shows more unreliable and lower speeds of bottlenecks.

 

ITS Device - Sensors

NDOT and FAST implement radar or loop detectors about 1/3 mile along the urban freeway in Las Vegas Metropolitan Area. Detection data include traffic speed, volume, occupancy, and classified volumes by vehicle lengths, which are the major sources to monitor and evaluate the freeway performance.

 

 

                      All-in-One Time Series Plot                               Stacked Volume Time Series Plot

·         Detectors are organized by freeways and listed by sequence;

·         Interactive map allows users to find and locate detectors;

·         User customizable interface allows users to select date range, time of day, day of week, and specific lanes;

·         Lane-by-lane plots help monitor the HOV and Express lanes usage and evaluate their performance;

·         Provide speed, volume and occupancy threshold parameters for TMC congestion management;

·         Classified vehicle counts provide data for the truck route and truck lane study;

·         Various plots exhibit the specific freeway segment characteristics from different perspectives;

·         Provide data for simulation, modeling and planning input and validation, and for work zone traffic control;

·         Monitor detector health and Identify malfunctioning detectors, controllers and communications.

 

ITS Device – Camera Snapshot Wall

FAST operates over 400 cameras in Southern Nevada. The Dashboard not only has a camera map, but also this featured Camera Snapshot Wall page. The cameras are grouped by freeways, corridors and area or by special events, like NASCAR, CES Show, Electric Daisy Carnival, UNLV Basketball or Football games.  Users don’t need to click on the camera icon to show the snapshot one by one; the traffic condition along the whole corridor can be easily viewed at a glance in a few seconds. This feature is innovative and is not seen on other websites. The camera can be added to any group without adding extra processing power to the server.

It is extensively used by radio traffic reporter and fleet dispatchers. It has a desktop viewer version and mobile version. It is like a mobile TMC screen wall in everybody’s hand. Users don’t need to install any app; they just need to type in the address http://bugatti.nvfast.org/CCTVSnapshotWall.aspx  in the smart phone or tablet browser. It can be simply added it to the iPhone home screen and works like an app.

image002

 

ITS Device – Traffic Camera Live Streaming Video

When a user is interested in one of the cameras on the snapshot wall page, he/she can click on the camera and a popup window will update the snapshot every 5 seconds and provide “Live Video” capability. It will stream the video to the user’s browser. It works on all browsers and devices, desktop or mobile, Apple or Android.

The beauty of this feature is that it doesn’t require extensive computing power to stream all the 400 cameras. It is on-demand streaming video. When the first user clicks on the “Live Video” button, it starts the streaming process. Additional use will extend the streaming video time. In reality, there are not many users streaming at the same time, so the dashboard only requires one server to handle all the streaming requests. Unlike traditional public systems that require an array of powerful servers to provide fewer CCTV images to a limited number of browsers, the FAST Dashboard’s on-demand method is the most cost-effective way to provide live streaming video for all cameras.  

 

 

ITS Device – Camera Snapshot Wall Animation

Over 400 cameras snapshots are achieved at 5-minute interval, and can be animated using this Camera Snapshot Wall Animation page. User can customize the corridor, date and time period and playback speed.

 

ITS Device – DMS Travel Times and Anlaysis

The FAST TMC currently displays travel times to 110 destinations on 42 DMSs, and the DMS messages are archived in the database. This function parses the messages and extracts the destinations and travel times from the messages, and stores them in the Dashboard database. Public can use this page to query historical travel times and analyze the 15% and 85% travel times so that they know their commuting route’s normal travel time and once-in-a-month longest travel time. This function has also been used by FAST TMC to verify the DMS travel time accuracy, especially when new DMSs are installed and start posting travel times.

 

Corridor Travel Time and User Defined Travel Time

Corridor Travel Time page presents the speed and travel times of the system’s predefined routes and user defined routes. The travel times displayed on this page automatically update every minute. It can also query any OD-pair travel time on the fly. When a user selects a route, the route is highlighted and the origination and destination are pinned on the live traffic map, as shown in the screenshot below. The pins can also be dragged to any location on the segments when users create their own route. This function is used to verify FAST TMC DMS travel time postings. RTC transit planners also use this to get travel times when designing proposed transit route schedules.

                                                      System Defined OD Pairs Travel Times

 

                                            User Defined Routes Travel Time

 

 

Ramp – Ramp Meters

NDOT and FAST implement and operate ramp meters at major interchange on-ramps. Most of them are operating at traffic responsive mode from 6:00 to 9:00 AM and 1:30 to 6:00 PM. Ramp volumes are collected by video/loop detection around the stop bar.

·         Interactive map allows users to find and locate ramp meters;

·         User customizable interface allows users to select date range, time of day, and day of week to draw plots or download data;

·         Help to identify and evaluate the ramp meter operation strategy, such as operation time, release rate and flushing;

·         Identify when the ramp meter is operating beyond its capacity and when flushes happen;

·         Help to adjust arterial signal timing to avoid over-spill;

·         Provide data for simulation and modeling input and validation, and for ramp meter design.

 

FAST Dashboard Adopted and Deployed by Other Agencies

Migrated and Deployed to NDOT Reno Area

Since NDOT District II is using the same data format as Las Vegas area. The FAST Dashboard has been easily migrated and deployed to NDOT District II. Besides that, a new feature, wind warning map is added to the home page. When wind speed is higher than a threshold, high profile vehicles are either advised to detour or drive with caution. This feature is used by Reno school bus dispatchers, as well as transit dispatcher and NHP state highway troopers.

                                          NDOT District II (Reno Area) Dashboard

 

Streaming Video Migrated and Deployed to City of Mesquite

City of Mesquite is very interested in the streaming video feature of the FAST Dashboard. This feature has been deployed to City of Mesquite with minimum effort. The hosting server is a virtual machine that capable of streaming 12 videos. The streaming video is displayed in browser which can be viewed by full screen. It is being used at City of Mesquite Police Department and City Hall without any additional cost. City of Mesquite has no TMC, with this system it can be used as TMC screen wall anywhere.

 

Besides the live streaming video wall, these streaming video can also be viewed on Apple or Android mobile devices. The screenshot below shows it is being viewed on an iPhone.

                                         City of Mesquite Live Streaming Video Wall

 

 

                                       City of Mesquite Live Streaming Video on Smart Phone

 

 

Other Features Under Developement

Interactive 3D Plot

This interactive Vehicle Delay Surface 3D Plot is used to investigate typical vehicle delay on each 1/3 mile segment of a corridor from hour 0 to 24.  By comparing the delay surface of different month, the freeway performance improvement can be easily observed. For example, I-15 Express Lanes were opened on 6/25/2010. By comparing the I-15 SB Delay Surface Plots of June and July, you can observe that delay has been reduced by 50% since the express lanes opened, and I-15 SB Sahara bottleneck is eliminated.

·         3D Plot is user interactive. Use mouse to drag and rotate the plot; Press “Ctrl” and “+” or “-” to resize the plot;

·         The Z-axis is the typical vehicle delay on each 1/3 mile segment;

·         Short axis is the time of day from 0 to 24;

·         Long axis is the segment.

                              Express Lane Benefit Analysis Using 3D Delay Surface Plot