Hancock Associates clarifies trip generation data for Essex development proposal

During the recent Essex Planning Board meeting held on July 2, 2025, discussions centered around traffic generation estimates for a proposed development, highlighting the importance of accurate data in urban planning. The meeting revealed concerns regarding the methodology used to calculate traffic trips, particularly the reliance on the Institute of Transportation Engineers (ITE) standards.

A board member raised questions about the trip generation figures provided by the developer, noting that the absence of the traffic engineer at the meeting limited the clarity of the data. The ITE standards, which are widely recognized in the field, typically estimate that a single-family home generates about ten trips per day, encompassing various types of traffic, including deliveries from services like Amazon.

Tom Sachs, an engineer from Hancock Associates, clarified that while he is not a traffic engineer, he utilized ITE data to inform the traffic estimates for the proposed site. He explained that the calculations were based on existing and proposed conditions, referencing specific ITE codes for different types of businesses, such as furniture stores. However, he acknowledged that the data used was from an older edition of the ITE manual, which raised questions about its accuracy.

Board member Val pointed out that the proposed development is located on Route 133, a major public road with a significant traffic count of approximately 75,000 vehicles. Val suggested that the impact of the proposed development, which involves a relatively small number of units, would likely be minimal during peak traffic periods.

The discussions underscored the need for thorough traffic assessments in planning processes, especially in areas with high traffic volumes. The board's inquiry into the traffic data reflects a commitment to ensuring that developments do not adversely affect local traffic conditions. As the planning process continues, further clarification and updated traffic studies may be necessary to address the board's concerns and ensure informed decision-making.