Brightline has announced that it will start testing trains at 110 miles per hour (177km/h) in northern Palm Beach County from Saturday 11 February.
This phase of testing follows similar trials along an 11-mile section of track between Martin and St. Lucie Counties last year.
Once all testing is complete, Brightline is scheduled to commence passenger services to Orlando later this year.
The trains for this service are produced by Siemens Mobility and each consist of two locomotives and four passenger coaches.
They are being tested in phases along the 129-mile rail corridor between West Palm Beach and Cocoa.
Brightline has made crucial safety improvements at all 156 railroad crossings along this route, including new crossing gates, signal systems, pedestrian gates, pavement markings and roadway profiles.
The testing will take place in Palm Beach County in February and March between 7am and 4pm.
