As can be seen in the table above, the construction cost for each component was calculated. Using the table, it was found that total construction cost would be $518,000. It was also found that the time for construction would be six to seven months.

For the purpose of this corridor, the pavement was designed such that one uniform pavement design could be used throughout the bounds of the project. The pavement design was completed using the Marshall method as described in the Mannering and Washburn textbook, and based on the traffic count data provided by the NJDOT. By performing this analysis, it was found that the optimal design consists of five inches of hot mix asphalt, five inches of coarse soil cement, and eleven inches of crushed stone.

The bridge expansion taking place over the NJ Turnpike entrance ramp will feature a new, single span bridge with a span length of 64 feet, making it long enough to accommodate three lanes of traffic passing underneath leading to and from the Turnpike. It also measures 130 feet long (14 girders at 10 foot spacing), providing enough room for the combined 9 lanes of traffic travelling Northbound and Southbound on Route 18. The typical girder that will be used is a W27x539.

The design for the Route 18 Corridor Improvements has been finalized, with snapshots of two areas of improvement shown below. The proposed turnaround ramp connecting Route 18 Northbound to Route 18 Southbound is seen on the bottom left, while the entrance ramp to the NJ Turnpike is shown on the bottom right.

Using the traffic counts taken from the site visit, we were able to begin modeling the intersection into Synchro. This will allow us to see how traffic currently moves through the intersection, make adjustments where necessary and then see how those adjustments will affect the flow of traffic.

A traffic count was also taken at the existing intersection of Tunison Boulevard and Tower Center Boulevard. This is the location of the proposed roundabout. The count was performed on Thursday, February 16th, between 4:45pm and 5:45pm.

The Traffic Count results from the intersection of Route 18 and Naricon Place are shown in the image below. The count was taken on Thursday (February 16th) between 4:45pm and 5:45pm.

After careful consideration of all contributing factors to the NJ Route 18 Corridor Redesign, our team has chosen to pursue alternative design #2 as our final selection. Although the differences amongst each of the three alternative designs slightly vary from one another, we as a team feel design #2 is the most efficient and cost effective. The primary difference between our initial decision of alternative design #1 opposed to our new selection of alternative design #2 is the idea to keep the overpass on Naricon Place on the Route 18 Northbound side into the business complex. Not only is it much more cost effective to leave the preexisting structure, but it also provides for a more safe entrance and exit into the complex considering the daily traffic volumes.