STH invites bids for HSR network between Warsaw and Lodz, Poland November 17, 2021 | Europe News Solidarity Transport Hub (STH) has invited bids for a EUR1.5 billion contract to provide rail design works for a new high-speed rail (HSR) network between Warsaw and Lodz. The contract includes delive... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password