WisDOT全州视频系统-路，美国

The Wisconsin Department of Transportation (WisDOT) are responsible for planning, building and maintaining Wisconsin’s network of state highways and interstate highway system. 人口超过5人,750,000, 这个部门管理11个部门。,753 miles of state highways and approximately 4,600座桥梁.

WisDOT manages congestion and improves safety, efficiency and mobility on state highways. 实现其目标, the department made their first traffic camera deployments in 1995, setting up most of the cameras on freeways and interstate highways. WisDOT also operate the State Traffic Operations Center (STOC), which creates a central 24/7 hub for managing statewide resources and communications.

Teleste started working with WisDOT in 2010. Over the years, Teleste has provided WisDOT with hardware as well as a video management system. In 2015, WisDOT deployed Teleste’s IP video management system, 的S-VMX, 包括用于记录所有摄像机的NVR. One of the essential features of the system is its scalability, which meets the client’s ongoing drive for continuous development and fulfils their evolving needs.

客户需求

The video system needs to support WisDOT’s operating environment, which includes:

• 总部- 24/7全州资源 & communications hub STOC (State Traffic Operations Center)
• 400 +摄像头
• Temporary cameras for construction sites (feeds coming from radio to fiber)
• 1400个主线探测器 & 交通拥堵的地图
• 公共安全 computer-aided dispatch (CAD) from three sheriff’s departments and the Wisconsin State Patrol (based in the STOC)
• 天气信息系统
• 511 -电话 & 网站
• 85个动态消息标志(DMS)
• 196 portable changeable message signs (PCMS)
• 14 stations with highway advisory radio (HAR)
• 交通媒体合作伙伴

WisDOT leads the state of Wisconsin’s Traffic Incident 管理 Enhancement (TIME) program. The comprehensive multi-agency, multi-discipline program was initiated in 1995. It aims to develop and implement the state’s Emergency Traffic Control and Scene 管理 Guidelines, 包括响应者安全等问题, costs of delays in fuel and time resources and reducing the likelihood of secondary crashes via quick clearance.

解决客户需求

Teleste provided WisDOT with an end-to-end video management solution that offers all hardware and software, greater scalability and support for the large, 越来越多的系统. 与WisDOT之前的解决方案相比, Teleste’s system also offered increased flexibility, 更可靠和可控, as well as superior quality of cameras and recording control software, 特性:

• Encoders supporting both MPEG-2 and MPEG-4: The previous hardware encoders were MPEG-2 only, 并且MPEG-4编码器不可用, which caused limited flexibility in the previous system.
• 摄像机连接到MPX-E编码器, or in the case of our new high definition COHU helios cameras, 有嵌入式编码器吗. All multicast video traffic is transported via our statewide fibre optic ring. 网络容量为10gbps.
• SD video recordings as 4CIF MPEG-4, with a variable bit rate capped at 3000 bps, 30 FPS.
• 高清视频记录为H.264, 1280 x 720, max bitrate of 3,000 bps, 30 FPS.
• Increased system reliability via encoders that are more stable than in the previous solution.
• Greater control of video archives via extremely robust NVRs.
• Enhanced capability to store video streams for further inspection via 64 terabytes of disk space dedicated to video storage and including 8 NVRs with 8 TB of storage each.
• More scalability via increased capability to transcode video streams to 网站s compared to the previous solution.

好处

Instantaneous benefits are achieved by control room staff regularly noticing areas of improvement and 最佳实践 in:

• 与执法部门沟通
• 更快的确认和响应
• Ability of the control room to coordinate response efforts or assist with efforts (ramp gate closures, etc.更早)
• 验证错误方向的驾驶员警报
• 提醒媒体，e.g., notify the public about incidents of concern

CCTV recording has enhanced the operation of TIME:

• Video clips can be used for TIME education and training, which increases safety by creating an invaluable asset to WisDOT and first responders, improving TIME techniques and increasing efficiency.
• Saved video is used on a regular basis by WisDOT, 以及紧急救援人员, to review incidents and learn how to respond more efficiently (lessons learned, 最佳实践, TIME meeting incident debriefs and Emergency Traffic Control and Scene 管理 Guidelines).

More than 60% of video requests to the system come from law enforcement. The system has enhanced capabilities to assist law enforcement in criminal cases:

• Providing evidential information by recording the crime itself, or by enabling investigators to place vehicles or suspects at a specific time and location.
• Providing capability to offload incidents and videos of interest to permanent storage for 120 days for further inspection.
• After 120 days, stored material is deleted in accordance with the records retention policy.

According to WisDOT, benefits achieved by the video system outweigh the resource implications.