JCT Consultancy Ltd

JCT Consultancy Ltd is a leading provider of traffic signal design software, training, and consultancy services, based in Lincoln, UK. Established in 1989, we specialize in developing and marketing the industry-standard LinSig software, used extensively by local authorities, consultants, and central government for traffic signal design. We also offer a comprehensive suite of traffic engineering solutions, including quickGreen for intergreen calculations and TranEd for graphical editing. Our commitment extends to delivering high-quality training courses, both supporting LinSig and covering broader traffic signal design principles. JCT Consultancy’s expertise is further demonstrated through our annual JCT Traffic Signals Symposium & Exhibition, a key event for the UK traffic signal community. With over 30 years of experience, we combine software development, training, and consultancy to provide world-class engineering services, helping clients optimize traffic flow and improve road safety.