4-Capacity Planning.docx

ADOT On-Call Diamond Grinding

CAPACITY PLANNING

Offeror shall describe how their organization has the capacity to carry out the effective and uninterrupted operations of any resulting contract. Include a detailed description of the number of service crews and equipment that will be dedicated to potential projects.

In order for WSP inc. to have a successful project it is critical that an evaluation of the necessary equipment and personnel be finalized prior to work starting. The following is the process WSP uses to evaluate each project.

1. Understanding each Projects Scope and Requirements

a. Project Type: Determine if the project involves road milling, pavement repair, and/or grinding. Understand the required milling and grinding depths, widths, and area to be covered.

b. Materials: Site visit to determine the existing conditions.

c. Equipment Specifications: Identify the type of milling machines and diamond grinding equipment available, including their capabilities (e.g., milling depth, grinding width, power requirements, productivity).

2. Determine Workload and Project Timeline

a. Area to be Covered: Estimate the total area to be milled and/or ground.

b. Milling/Grinding Depth and Width: Review the specifications of milling/grinding and how it will affect the time required.

c. Target Completion Time: Decide on the time frame for project completion.

d. Work Shifts: Factor in how many hours per day or shifts the team will work.

3. Estimate Equipment Productivity

a. Milling Machine Productivity: Utilize historical production rates to determine a conservative average rate for each machine.

b. Diamond Grinding Productivity: Similarly, analyze previous production rates for diamond grinding to estimate a conservative rate of production for each machine.

c. Downtime: Account for equipment maintenance, breakdowns, holidays, and other delays.

4. Calculate Required Equipment

a. Number of Milling Machines: Calculate the total number of SY to be milled, divide the total area to be constructed by the productivity rate of a milling machine. For example: total number of machines required = the total area (200,000 SY) divided by the time allowed (48 HR = 4,167 SY/HR), then divide by the average hourly productivity of each miller (500 SY/HR) equals 8 milling spreads required to accomplish this project in this time duration.

b. Number of Diamond Grinding Machines: Similarly, calculate the number of SY to be ground, divide the total area to be constructed by the productivity rate of a grinder. For example: total number of machines required = the total area (200,000 SY) divided by the time allowed (144 HR = 1,388 SY/HR), then divide by the average hourly production rate of a grinder (325 SY/HR) equals 4 grinding machines.

c. Crew and Operator Requirements: Once the number of machines is determined for both milling and grinding the determine the appropriate labor skill classes required.

5. Assess Resource Availability

a. Machine Availability: Check the availability of equipment. If the required equipment is unavailable, consider renting or purchasing additional machines.

b. Skilled Labor: Ensure that skilled operators are available for both milling and grinding operations. Proper training might be necessary if new technology or equipment is being used.

c. Material Availability: Ensure there is a consistent supply of materials (e.g., asphalt milling teeth, diamond grinding heads).

6. Optimize Equipment Usage

a. Machine Scheduling: Create a detailed schedule of when each machine will be used, accounting for factors such as:

i. Shifts

ii. Equipment downtime

iii. Rest periods for operators

iv. Weather or environmental factors

b. Equipment Rotation: If machines have limited working hours (due to wear or maintenance), plan for rotation to avoid delays.

7. Account for External Factors

a. Weather Conditions: Weather can significantly impact milling and grinding operations. Schedule based on seasonality and expected weather patterns.

b. Traffic or Site Access: Account for traffic control measures and limited access that may reduce machine efficiency.

c. Environmental Restrictions: Ensure that all work complies with environmental regulations, including noise, dust, and emissions control.

8. Set Benchmarks and Monitor Progress

a. Performance Metrics: Track progress regularly by measuring the area completed per hour and comparing it to the planned productivity. This will allow adjustments to be made if needed.

b. Machine Maintenance: Plan for regular maintenance to prevent unexpected downtime.

9. Adjust as Needed

a. Revise Capacity: If the project faces delays, reallocate resources, increase working hours, or add more equipment to ensure the project stays on track.

b. Feedback Loops: Create a feedback system to report on progress and challenges in real-time.

Solicitation Number BPM006648 image1.jpg