Transit Briefs: Brightline, Denver RTD Transit Briefs: Brightline, Denver RTD Written by Marybeth Luczak, Executive Editor Brightline has selected Orlando, Fla.-based Radixx, a Sabre company, for online retailing and marketing; and Denver Regional Transportation District (RTD) is launching a new payment method on its Mobile Tickets app. The partnership with Radixx will allow Brightline, a private-sector passenger railroad company, to be part of Radixx Res™, a cloud-based passenger services system that offers “unlimited ancillary upsells”; to use the Radixx Retailer module; to implement Radix ezyCommerce, an internet booking engine; to contract the use of Radixx Insight Marketing+ to develop customer segmentation strategies, and create and manage digital marketing campaigns; and to use Sabre’s Movement Manager, a cloud-hosted operations management system. Implementation is expected “later this year,” according to Radixx.