Test Drive: Live traffic data on Navigon Mobile Navigator iPhone app

Navigon was the first major GPS maker to offer a downloadable iPhone navigation app, porting over its graphic interface and features to the popular cell phone. Today, the Navigon Mobile Navigator stands as the top-grossing application in the Apple iTunes store, though until this week it has lacked one key feature: traffic information. (See our Navigon Mobile Navigator review.)
 
Navigon has pioneered many features on portable navigation devices (PNDs), such as reality view and free, real-time traffic data. Now no longer offering devices in the United States, Navigon is focused on applications, Navigon continues to innovate by offering Traffic Live as a premium iPhone app with a one-time fee. Navigon Mobile Navigator is now a $90 application. Traffic Live adds another $25, though no monthly or annual fee is required. The costs do add up, but the total price is still significantly less than purchasing a comparable PND. This add-on is purchased through the Mobile Navigator application, rather than from the iTunes store.
 
As with past Navigon PNDs, the Traffic Live information is aggregated from road sensors and traffic cameras, and supplied by Clear Channel's Total Traffic Network. Navigon claims to supplement this traffic information with real-time speed data from commercial fleets, as well as regular GPS users. The most exciting development is adding crowdsourced data from Navigon application users who choose to share their current speed and location.
 
The traffic information is neatly integrated into the iPhone application, which has a similar look and feel to the traffic menus on the discontinued Navigon PNDs. Traffic Live provides information such as the start and end point of an incident, the average speed of traffic, a description of the traffic type (construction, accident, road closed, etc.), an expected time delay, the distance to incident, and length of the traffic incident. Users can decide if they want traffic information to be automatically included when calculating a route or upon request. 
 
Traffic incidents can be viewed in a list and can be sorted a number of ways.  For example, surrounding traffic can be displayed or only incidents on the current route. Incidents can be further filtered by distance to event, road, or expected delay time. When selecting a traffic incident from the list, it is displayed on the route with an overhead view, along with related information, such as traffic speed.
 
In our initial tests, we found a Garmin Nuvi 1690 found more traffic incidents, though it is hard to say which system is better. Remember, more alerts isn't the goal. Timely, accurate reports are more valuable. Due to the variables in testing, we do not rate traffic services on accuracy. However, we expect the crowdsourcing aspect to significantly aid Live Traffic as more users download the add-on application.
 
We can say, the traffic integration is well done, though there remains room for improvement regarding color coding, especially on the main map screen. (Many competitors overlay traffic conditions in different colors on the main map screen so a user can see upcoming incidents at a glance.)
 
Bottom line
The Mobile Navigator remains one of the best navigation apps available for the iPhone, serving as a viable alternative to a traditional PND. For $25, Traffic Live is a natural choice for users looking to add traffic information. However, our long-standing advice remains that any traffic information can be inaccurate or outdated, as is the case with other competing products, whether apps or PNDs. Navigon's edge is in tapping users to be mobile traffic sensors, and given the popularity of the iPhone and this software, the company has a better chance than most of making good on the promised benefits of crowdsourcing traffic info.

See our full reviews of AT&T Navigator, iGo My Way, Navigon Mobile Navigator, Sygic Mobile Maps, TomTom iPhone application, and X Road G-Map for iPhone. And our Motorola Droid navigation review.

For more information on portable automotive GPS navigation systems, see our Ratings, first looks, and buying advice and watch our video guide. Discuss GPS devices in the forums.

  —Jeff Bartlett and Frank Spinelli