The Project Design App allows the users to efficiently design a roadway rehabilitation project and develop the associated cost estimate. Engineers, planners, designers, or maintenance staff can determine the pavement treatments, assets that will be replaced, and cost parameters for the design estimate. The application uses roadway data, asset data, and cost data along with user inputs to generate the results.
Working in the application is dynamic but generally follows a linear workflow that matches the order of the tabs. Each tab includes certain assets, treatments, or project parameters that can be selected or changed. The Overview tab provides the final summary of the project items and costs. The detailed summary sheets can then be downloaded and used for project documents. The following sections explain each tab and how it is used.
New Project Button
The New Project Design button located at the top right begins a new project design. Upon clicking it you will be prompted to select a route number and the milepoint range for the project. The milepoint range can be adjusted later in the Details tab but the route cannot be changed. You also are prompted to select engineering defaults for the project based on the Region. This selection determines what will be used for default costs, application rates, and unit weights. All of these parameters can be manually adjusted later in the Costs tab.
The roadway tab allows selection of roadway elements including rotomilling, rumble strips, pavement treatments, paint, pavement messages, and soft sport repair. Below is a summary of how each element is used.
- Rotomilling: Select rotomilling depth beginning at 1 inch and stepping up in 1/2 inch increments.
- Rumble Strips: Select which rumble strips will be replaced by picking Centerline, Shoulder, Both or None. Left-shoulder rumble strips on divided highways are considered centerline. For new rumble strips to be installed create a new cost item in the Costs tab.
- Treatments: Select a pavement treatment such as HMA, SMA, Chip Seal, Tack Coat, and others. Only asphalt pavement treatments are available. For each treatment the depth, unit weight, or application rate can be selected as applicable. The treatment will be shown in the profile graphic to visualize the elevation impact to the roadway. Clicking on a treatment in the profile graphic allows you to edit the parameters of that treatment. Costs for treatments can be modified in the Costs tab.
- Soft Spot Repair: Select the type of soft spot repair and the percent of area that will be covered. If specific soft spots are known those should be documented in the Notes section of the Details tab. The percent coverage will use the surface area of the project to calculate the material needed for soft spot repair.
- Paint: Select if paint, tape, or thermoplastic will be used for Pavement Striping, Pavement Messages, and Pavement Markings. The Number of Applications must be entered as a whole number. A value of at least 1 must be entered to calculate the cost. Values larger than 1 only impact the cost if Paint is selected for Pavement Striping. For Pavement Messages, Pavement Markings, and Pavement Striping Tape only one application is calculated even if a value larger than 1 is selected.
Signs, Barriers, End Sections, and Utilities Tabs
These tabs all provide a table and map view that can be used to select which items will be replaced as part of the project. Each row in the table represents one item (sign, barrier, end section, or utility). The check boxes on the left side of the table can be selected to indicate that the item will be replaced. After clicking the check box a point will be shown on the map and the item will be added to the cost and quantity totals above the map. Clicking a row in the table will place a pin on the map where that item is located. Clicking a point on the map will highlight the row in the table associated with that item.
Columns in the table can be sorted by clicking on the header. Columns can be added or removed using the columns list at the bottom left of the table. The "All" button selects all of the elements in the list and the "None" button deselects all elements in the list. The adjacent Map icon button toggles the map on and off allowing full-width table viewing. In the Utilities tab you also have buttons for Manholes, Valves, Catch Basins, and Monuments. Clicking any of these buttons selects all utilities of that type.
The costs tab shows all item costs and project costs such as PE, CE, Mobilization, etc. The cost assumptions can be changed using a percentage or dollar value. If a raw cost is entered the percent will be calculated, if a percent is entered the cost will be calculated. A percentage value uses the total cost of work items selected in the Roadway, Signs, Barriers, End Sections, and Utilities tabs. In terms of the Overview tab the percentages are based on the total cost of all items in the “Roadway” and “Traffic & Safety” sections.
Each item in the Cost Assumptions table begins with the Region default percentage. After making edits the "Load Defaults" button can be used to restore default values. This will remove any changes that have been made with the exception of the Inflation category which will keep any values that have been entered.
The "Plus" icon button can be used to create a unique cost item in the cost assumptions list. Clicking it will add a new line that can be named and then have a cost entered for it. This is useful for entering project costs that are not captured in typical project work including any widening or shoulder work, paving accesses, signal work, drainage work, etc. Unique cost items are not affected by the Load Defaults button.
Below the Cost Assumptions list the cost of each Item or Asset can be edited. Costs are grouped according to how they are selected in the application. Click in the gray headers to expand the list and show each item. The default value will be shown and can be edited in the input box.
The details tab is for editing project details and recording notes about the project. The Project Name, PIN, Project Number and construction year can be entered and will be shown in the Overview tab. The project milepoint limits can also be adjusted by clicking the blue "Edit" button. This will update treatment quantities in the Roadway tab and will add or remove assets as applicable in the Signs, Barriers, End Sections, and Utilities tabs. The route cannot be edited.
The Notes section is for entering project notes including assumptions, cost details, and design comments. This is useful for tracking information and collaborating on project design. Any user with edit permissions can add notes. The top right of the notes section will indicate when the last edit was made and by whom.
The Overview tab provides a concept report summary of the project design. It includes the project details, a project map showing the begin and end milepoint, and an itemized list of the work items. The overview can be printed or saved as a PDF using the "Print Overview" link. The printable overview includes the information shown on the Overview tab along with the roadway treatments profile graphic and the Notes section from the Details tab. The "Safety Report" link jumps to the Safety Analysis App with the route and milepoint pre-populated. This allows for integrated analysis of safety as part of the project.
Project summary sheets can be downloaded in .csv or .xlsx format using the download button in the upper right of the application. The download includes summaries for Signs, Pavement Marking Paint, Surfacing, Barrier, and Utilities. The Barrier and Sign summaries include a record for each sign or barrier selected for replacement. The other summaries include half-mile totals for all items selected in the project design. Each summary sheet has hidden columns and rows that can be used for adding additional items or work to the project. These may also need to be deleted for exporting or printing the summary sheets. Some of the cells and all of the column totals include formulas for calculating quantities. The export does not include the overview table.