REPRESENTATIVE PROJECTS
Design Projects
| Washington Street Corridor, Wellesley, Massachusetts |
| Conley Associates, Inc. designed the realignment of a section of Washington Street that consists of one through lane in each direction with on street parking. The section of the corridor included an existing signalized intersection and several unsignalized intersections. Several design alternatives were investigated including the widening of the ROW to include a second travel lane in each direction and signalizing two additional intersections in close proximity to the existing signalized intersection and coordinating the timings of the three signalized intersections. The roadway geometry was also investigated to determine the most appropriate use of the future ROW. Several scenarios were investigated including adding isolated turning lanes and shared turning and through lanes, while maintaining a premium of on street parking spaces. The corridor was designed to limit the queue lengths at the three signalized intersections and maximizing the efficiency in which vehicles traveled through the corridor. Although the final plan recommended adding a lane in each direction throughout the corridor, there was only a loss of approximately five percent of the on street parking spaces. |
| Traffic Signal Improvements for Route 7A (Northside Drive) at Emma Street, Bennington, Vermont |
| Conley Associates, Inc. designed the traffic signal timing and intersection improvements for the intersection of Northside Drive at Monument Plaza Drive and Emma Street. The traffic signal timing was modified to allow improved access to adjacent land uses which access Northside Drive through the intersection. In addition, pedestrians were accommodated through the provision of pedestrian phasing and indication. Conley Associates, Inc. then designed the crosswalk, sidewalk connections, wheelchair ramps, pedestrian signal head installations, and all conduit and utilities placement. The design required coordination with an adjacent landowner`s site design for one corner of the intersection and approvals of the Vermont Agency of Transportation for all modifications. A detailed management and protection of traffic schedule and plan was designed for the construction of the improvements. The construction phasing was conducted without restricting access through the intersection. |
| Intersection Redesign for Hubbard Avenue at Berkshire Crossing North Drive, Pittsfield, Massachusetts |
| Conley Associates, Inc. designed the roadway geometry, pavement marking layout, and signal design for the intersection. The intersection redesign was conducted to incorporate a fourth leg at the previously T intersection, and a left turn lane was installed to provide access to the new leg. The pavement markings along Hubbard Avenue were redesigned to allow for maximum queue lengths at a separate nearby signalized intersection. The traffic signal timing was modified to allow for bi-directional left turn protected movements for the major approaches, and split phasing along the minor approaches. Conley Associates, Inc. then designed the intersection to incorporate the additional signal head installations, and all conduit and utilities that would be necessary. The design required coordination with the local City Engineering Department and MassHighway. Approvals from both agencies were required for all modifications to the intersection and Hubbard Avenue corridor. |
| Intersection Signalization and Redesign, St. Albans, Vermont |
| Conley Associates, Inc. worked on the implementation of signalization at the intersection of VT 104 at VT 36 in St. Albans, Vermont. The intersection consisted of one approach lane in each direction. The redesigned intersection included left turn lanes at all approaches. The signal design sheets were developed for the construction plans including the signal design, signal timing, and signal equipment placement at the intersection. The roadway geometry for the intersection was designed based on VTrans standards, specifically for the left turn lane lengths and the offset and shifting of the centerlines and lanes. |
| Piety Corner Intersection Study, Waltham, Massachusetts |
| Conley Associates, Inc. was retained by the City of Waltham to analyze the existing and future operations of Piety Corner, a five-legged intersection serving 50,000 vehicles per day. The recommendations of the study included modifications to the signal timing as a short-term strategy. The long-term recommendations involve the widening of the intersection to provide additional capacity. The intersection alignment would be modified in order to acquire right of way without impacting any structures. |
| Parking Lot Layout Design, Waltham, Massachusetts |
| Conley Associates, Inc. was retained by the property manager of the Waltham Star Market Plaza to redesign the existing parking layout and access and egress points. The existing layout had an excess amount of driveways to the adjacent roadway causing numerous vehicular conflict points. In addition, there were many short parking aisles that caused patrons to travel up and down a few aisles before finding a space. Conley Associates, Inc. created a parking design with only one main access and egress point and two smaller driveways for delivery circulation. The parking aisles were also rotated 90 degrees to create fewer aisles with more parking spaces per aisle. These two design aspects reduced the number of vehicular conflicts both on site and off site on the adjacent roadway, and reduced the number of movements made by each vehicle while searching for a parking space. The new design did not change the number of parking spaces that originally existed at the site. |