Radio Data System-Traffic Message Channel (RDS-TMC) is a large-scale and cheap traffic information dissemination technology to moderate traffic congestion and enhance traffic service.

基于广播数据系统的交通信息频道或称交通信息广播频道(RDS - TMC)，是一种广域、廉价的交通信息发布技术，是缓解交通拥堵，改善交通信息服务的有效途径之一。

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With traffic congestion at an all time high in major metropolitan areas, the AVIC-Z150BH and AVIC-X950BH enable users to see the latest traffic conditions with a built-in RDS-TMC traffic tuner.

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The device itself is a fairly standard affair, boasting a 4.3-inch WQVGA display, a 400MHz CPU, 64MB of RAM, an SD card slot, an FM transmitter, Bluetooth, and maps of the US and Canada pre-loaded on the unit's 2GB of internal flash memory -- an RDS-TMC traffic information receiver is also available as an optional accessory.

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