Enhancing Urban Mobility Through Data-Driven Insights

Minimum vehicular volume warrant requiring adequate traffic volume on both major and minor streets over an 8-hour period. We analyze traffic counts to determine if the intersection meets the threshold of 600 vehicles per hour on major street and 200 vehicles per hour on minor street.

Alternative volume warrant with higher thresholds applied over any 4 hours of a typical weekday. This warrant requires 900 vehicles per hour on major street and 100 vehicles per hour on minor street, providing flexibility for locations with concentrated peak traffic.

Minimum volume warrant for peak hour conditions when traffic delays exceed acceptable thresholds. We assess when minor street traffic experiences excessive delays (typically 4+ vehicles per lane) due to insufficient gaps in major street traffic during the peak hour.

Pedestrian safety warrant based on minimum pedestrian crossing volumes and gaps in traffic. We evaluate when pedestrians exceed 100 crossings per hour (or 190 over 4 hours) and face inadequate crossing opportunities (gaps less than 60 seconds).

Special warrant for school zones considering student volume, age, and crossing conditions during arrival and dismissal periods. We assess elementary and middle school crossings where at least 20 students cross per hour and adequate gaps are insufficient.

Warrant for signals needed to maintain proper traffic grouping and coordinated signal system progression. We evaluate when an intersection is part of a coordinated network where signalization is necessary to maintain platoon progression and system efficiency.

Safety warrant based on documented crash frequency and severity that could be corrected by signalization. We analyze 12-month crash data to identify 5+ correctable crashes (right-angle, turning, or pedestrian collisions) that signals would likely prevent.

System warrant considering the intersection's role in the overall roadway network and traffic management. We assess when an intersection connects major routes where signalization would improve network operations, reduce delay, or improve emergency response times.

Railroad crossing proximity warrant for intersections near at-grade railway crossings requiring signal coordination. We evaluate when an intersection is within 140 feet of a railroad crossing and signalization is needed to manage queuing and prevent vehicles from stopping on tracks.