We add railroad crossings (RRC) with alert on railroads with unguarded level crossings and on crossings without track barrier arms. On all other crossings one RRC can be added without alert: on a 90 degrees angle. The app issues a warning when the angle between RRC en the segment is less then 45 degrees and the RRC is within 30 meter distance of the driving location. Be careful: This can be a nearby road!