The impact the signal will have on smooth traffic flow. In other words, would installing the signal help traffic flow or make it worse on the main street?
• Motor vehicle collisions: A traffic signal may reduce certain type of collisions such as right angle collisions and left turning collisions. If the collision history indicates that there is a pattern of these types of collisions, then a traffic signal would be a benefit. • Close proximity to other signals (less than or equal to 800 metres) • Number of existing signals Once these criteria are reviewed by the traffic engineer, the analysis will help determine if a traffic signal is justified. The traffic engineer may consider other options rather than installing a signal. These include alternate forms of traffic control (e.g. 4 way stop sign control), geometric, or other improvements that may correct safety related issues, or investigate the possibility of installing a roundabout rather than a traffic signal. Simply installing a traffic signal will not necessarily solve all perceived problems. Traffic signals can have a negative affect on traffic flow and safety if they are installed w
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