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Traffic Count & Data Collection
Traffic volume data and its accuracy are essential in ensuring the successful completion of technically sound traffic impact or transportation planning studies, which in turn determine the ultimate transportation infrastructure improvements needs to mitigate development impacts or alleviate existing traffic congestion within a particular geographic area. Traffic data collection provides the basis for identifying problems, confirming earlier hypotheses, quantifying the impacts of proposed developments or land use changes as well as determining the nature or magnitude of needed improvements. How well trained the data collection personnel are and the selection of right data collection types, times, forms and methods are the key factors for obtaining accurate traffic volume counts.
EASL Transportation Consultants, Inc. understand that traffic count procedures for individual projects must be clearly defined in a data collection plan prior to starting the field work, including the types of information needed, acceptable collection time frames, and any special conditions by each of the specific projects. Our firm has a dedicated team of field staff who are professionally trained to perform different types of traffic data collection tasks including but not limited to:
• Intersection Classified Turning Movement Count (TMC): This type of traffic count is manually collected utilizing hand-
held electronic or mechanic traffic counters. The field personnel visually observes the number of approaching vehicles,
trucks, emergency vehicles, bicycles or pedestrians on each of the intersection approaches. The information is then
recorded on the counter for a extended period of time, typically a two hour period each during both the morning and the
afternoon commute peak hours of adjacent traffic. The data collected include turning movement volumes and vehicle
classification typically distributed in 15-minute intervals. Roadway geometrics, lane assignments, traffic control devices,
signing and pavement markings, traffic signal timings (if signalized) and any special traffic operation conditions are also
noted during the data collection. TMC is typically collected during the normal weekday periods, excluding holidays
and weekends. Our professional staff has extensive experience in performing TMC Counts.
• Queue Length Data: EASL Transportation Consultants, Inc. has the service capability in collecting vehicle queue data and
performing queue analyses at signalized and un-signalized intersection and at facilities such as restaurant drive through
lanes to determine the maximum existing queues and to estimate future queuing needs for lane storage design.
• Travel Time and Delay Data: These studies are usually performed to determine potential benefits of corridor improvements
in reducing travel delays and shortening travel times that would result from signal timing synchronization or other traffic
improvement measures. The before and after run data are collected to compare the performance improvements along a
study corridor. The floating vehicle method is typically used in these types of studies. EASL Transportation Consultants,
Inc. has specially trained staff who is capable of performing the above data collection tasks.
• Parking Inventory Data: Refer to regarding the details of our data
collection capabilities for parking studies.
EASL Transportation Consultants, Inc.
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