1. Contract Cost Data
Contract Cost Data Results
Contract Cost Data
2. Contract Cost Data - Caltrans District 8
CALIFORNIA DEPARTMENT OF TRANSPORTATION - CONTRACT COST DATA ; Average Price/Unit: $, Avg No. Units ; Std Dev. (of Unit Price): ±$, Rows Selected ; Weighted Avg.: ...
Contract Cost Data
3. Contract Cost Data - Caltrans District 8
CALIFORNIA DEPARTMENT OF TRANSPORTATION - CONTRACT COST DATA ; Average Price/Unit: $ ; Std Dev. (of Unit Price): ±$ ; Weighted Avg.: $ ; Minimum Price/Unit: $.
Contract Cost Data
4. Cost Estimating Resources - Caltrans - CA.gov
Cost Estimating Resources ... The Caltrans Design Program provides policies, tools, guidance, training, and best practices to assist in the development of project ...
State of California
5. [PDF] Cost Estimating Guide - Alameda County Transportation Commission
Note: Caltrans has a defined Project Study Report Cost Estimate format. This Guide is consistent with that format, although it has been expanded to include Risk ...
6. [PDF] Development of a Statistical Model to Predict Materials' Unit Prices for ...
Many state transportation agencies maintain construction cost data through webpages ... the Caltrans Construction Contract Cost database, were analyzed by project ...
7. [PDF] Appendix E: Corridor Design Cost Estimates - City of San Pablo
28 feb 2022 · Unit costs are based on 2021 dollars and were assigned based on historical cost data from Caltrans Contract Cost Database. This cost opinion.
8. [PDF] Cost Estimating Guide - Alameda County Transportation Commission
The Caltrans Contract Cost Database is a summary of cost (by item) for highway construction projects. Prices shown in this summary are the mathematically ...
9. Caltrans Cuts Records Research Time by 95% with 4M
9 apr 2024 · The adoption of 4M is projected to yield a tremendous cumulative cost and time savings for Caltrans. Based on a study using data from the ...
See AlsoAscensionpress Com LoginHow Caltrans reduced record research time by 95% and costs by 73%, freeing up 75% of engineering resources for MMBI project with 4M.
10. Lifetime cost analysis of concrete barriers and steel guardrails - Nature
8 jul 2024 · Importantly, we utilize the most recent data extracted from various Caltrans databases to compute real-world construction and maintenance costs ...
This study investigates the lifetime costs associated with concrete barriers and steel guardrails. We introduce a cost analysis methodology that incorporates critical factors such as construction costs, maintenance costs, exposure risks during maintenance activities, and the costs imposed to traveling public through the increased traffic and the crash outcomes. We integrate various parameters including economic factors, road geometry, general weather condition, and traffic mix to estimate a location-dependent cost for each type of barrier accurately. A software tool, named CalBarrier, was developed during this study to carry out the calculations and the comparison of lifetime cost of aforementioned barriers. An inherent strength of this research is its reliance on recent real data extracted from various databases of California Department of Transportation (Caltrans), ensuring precision and relevance in accounting for various influential factors. Drawing insights from Caltrans practices and interviews with their personnel, this study emphasizes the intricate decision-making process involved in mitigating safety risks and reducing operational expenses. Although our data originates from California, the methodology for life cycle cost analysis, and our software are applicable for regions with different socio-economic conditions by deploying user input costs, making our findings a valuable resource for other areas facing comparable challenges.
11. Cost Estimating - Structures Resource Site
Reference Documents: Means Heavy Construction Cost Data; BNi Public Works Cost Book; Caltrans Cost Data Books. Copyright © 1999-2017 ...
Structure Cost Estimating
12. California GTFS Quality Dashboard - Cal-ITP
... cost-effective for everyone. A key Caltrans objective is helping transit ... about what Caltrans considers good GTFS data and why. How to use this ...
Anyone planning a transit journey through their favorite trip planning application is almost certainly using GTFS data. Transit providers can publish this format to describe where their vehicles are supposed to go, when they’re supposed to get there, and where they actually are in real time, as well as other useful information like whether vehicles accept bicycles or what it will cost to board. Trip planning applications like Google Maps and the Transit App turn this information into a user-friendly experience for transit riders. But if there are unexpected issues with that data, the rider may get incorrect information—or none at all.
13. [PDF] Data Mining of the Caltrans Pavement Management System (PMS ...
Caltrans Cost Center. 3 Digits Code. DEFECT. Dominant Defect Description. 12 Letters. DIR. Direction. L, R. DIS. District. 1 - 12. DPN. District Project Number.
14. Preconstruction Support Cost Hours Estimating on Caltrans Pavement ...
12 jun 2023 · It uses data on the 139 pavement rehabilitation projects for which Caltrans opened bids in the five-year period from April 26, 2016 to May 11, ...
Because the construction phase accounts for the majority of project costs for pavement rehabilitation projects, most research on infrastructure project cost estimating focuses on that phase, rather than on the preconstruction phases. Nevertheless, costs incurred prior to construction, referred to in this report as "preconstruction costs" are significant and worthy of consideration (See Section 2.1 of the report for a more detailed and precise definition of preconstruction). In the 2020– 2021 fiscal year, for instance, the California Department of Transportation (Caltrans) spent more than $169 million on preconstruction work for pavement rehabilitation projects. This report presents the results of a study of preconstruction cost estimating for pavement rehabilitation projects undertaken by Caltrans. It uses data on the 139 pavement rehabilitation projects for which Caltrans opened bids in the five-year period from April 26, 2016 to May 11, 2021. A data set was developed that combined the preconstruction hours for each project with the primary bid items for the pavement rehabilitation projects. Two models were developed to estimate preconstruction hours from the bid items, one using an Artificial Neural Network (ANN) and the other a parametric exponential model developed using multiple regression. The models had coefficients of determination of 0.85 and 0.80, respectively. Tools were then developed to assist professional users in validating their preconstruction cost estimates...
15. [PDF] Procurement and Infrastructure Costs
• Collect project-level cost data for all 50 states. • Assemble ... Figure: Caltrans Projects: Costs and Engineer Assignment. (a) Project-Level Cost per ...
