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Program and project surveys were conducted on the fall of 2003 and the summer of 2004. The program surveys focused on the individual state design-build programs while the project surveys focused on selected design-build projects and comparable design-bid-build surveys completed by responding states participating in the SEP-14 program. This appendix describes the distribution and response rates for the design-build program and project surveys conducted for this study relative to universe of SEP-14 design-build programs and projects completed by the end of 2002.
By end of 2002, there were 282 design-build projects in the SEP-14 program, including projects already completed and those planned for completion after 2002. These 282 projects represented a capital program of $14 billion. Out of these 282 design-build projects, 140 projects (50-percent) were completed by the end of 2002. Of these 140 projects, 86 projects (61-percent) were selected for survey and 69 of these surveyed projects (80-percent) produced completed project surveys and 17 comparable design-bid-build project surveys (20-percent), based on project type, size, sponsoring organization. Out of the 17 returned D-B-B project surveys, 11 contained sufficient data to permit detailed analysis of project duration and cost by project phase.
Exhibit D.1 shows the breakdown of project surveys distributed and completed relative to the number of SEP-14 design-build projects completed by the end of calendar year 2002.
Source: Design-Build Projects Approved Under SEP-14, Federal Highway Administration, July 2003
Out of $13.9 billion in total potential SEP-14 projects, $5.5 billion (40-percent) were completed by the end of calendar year 2002. Of this amount, $5.2 billion (94-percent) in completed projects were selected for survey. Completed design-build project surveys were returned representing $4.1 billion in project costs or 75-percent of completed project costs. $315 million worth of design-bid-build projects were also completed and returned, which is 8-percent of the value of completed design-build surveys. Exhibit D.2 shows the cost breakdown of project surveys distributed and completed relative to the cost of SEP-14 design-build projects completed by the end of calendar year 2002.
Source: Design-Build Projects Approved Under SEP-14, Federal Highway Administration, July 2003
Exhibit D.3 shows the composition of surveys distributed and completed relative to the number of SEP-14 design-build projects by project type. As shown in Exhibit D.3, the sampling of design-build projects completed by the end of calendar year 2002 shows a fairly consistent numerical distribution by type of project in going from total completed projects to surveyed projects to completed surveys. In each group, Bridge/Tunnel and Road-New/Widen project types predominate. Only for the limited sample of design-bid-build projects does the distribution significantly change, with the Road-Rehabilitate/Reconstruct project type becoming more predominant. In terms of the cost categories of projects surveyed, there is also consistency in going from total completed projects to surveyed projects to completed surveys, with the $2-10 million category predominating, followed by the under $2 million and $10-50 million categories. In the case of the completed design-bid-build surveys, the $10-50 million category predominates. The Road-Rehabilitation/Reconstruction project category makes up most of this project sample.
Exhibit D.4 shows the composition of surveys distributed and completed relative to the cost of SEP-14 design-build projects by project type. As shown in Exhibit D.4, the sampling of design-build projects completed by the end of calendar year 2002 shows a fairly consistent cost distribution by type of project in going from total completed projects to surveyed projects to completed surveys. In each group, Road-New/Widen and Road-Rehabilitate/ Reconstruct project types predominate. Only for the limited sample of design-bid-build projects does the distribution significantly change, with the Bridge/Tunnel project type becoming more predominant. In terms of the cost categories of projects surveyed, there is also consistency in going from total completed projects to surveyed projects to completed surveys, with the over $100 million category predominating. This reflects the frequent use of design-build to delivery very large projects that are more difficult to produce under traditional project delivery approaches. In the case of the completed design-bid-build surveys, the $10-50 million category becomes more significant, reflecting the smaller typical size of design-bid-build projects.
The distribution and response rates for the program and project surveys were fairly high for the length and complexity of the survey instruments used. Only the comparable design-bid-build survey response rate was relatively low. Exhibits D.3 and D.4 show that the survey sample and completed projects are highly representative of the major types and sizes of design-build projects completed by the end of 2002 under the Sep-14 program. This suggests that the findings produced by the study surveys are fairly typical of design-build projects in the Federal-aid highway program.
Exhibit D.5 consists of a series of tables containing the number and percent distribution of projects surveys relative to the SEP-14 program, survey sample, and completed surveys, broken down by type and size of project.
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| Project Type | Number | % | Cost ($000) | % | $/Project |
|---|---|---|---|---|---|
| Road - New/Widen | 78 | 28% | $9,390.5 | 67% | $120.4 |
| Road - Rehabilitate/Reconstruct | 35 | 12% | $2,447.8 | 18% | $69.9 |
| Road - Resurface/Renewal | 17 | 6% | $105.1 | 1% | $6.2 |
| Bridge/Tunnel | 105 | 37% | $1,432.4 | 10% | $13.6 |
| ITS | 12 | 4% | $74.0 | 1% | $6.2 |
| Other | 35 | 12% | $501.7 | 4% | $14.3 |
| Total | 282 | 100% | $13,951.6 | 100% | $49.5 |
| Project Size | Number | % | Cost ($000) | % | $/Project |
| <$2 Million | 76 | 27% | $72.7 | 1% | $1.0 |
| $2-10 Million | 97 | 34% | $479.6 | 3% | $4.9 |
| $10-50 Million | 65 | 23% | $1,472.9 | 11% | $22.7 |
| $50-100 Million | 25 | 9% | $1,683.8 | 12% | $67.4 |
| >$100 Million | 19 | 7% | $10,242.6 | 73% | $539.1 |
| N/A | 0 | 0% | $0.0 | 0% | $0.0 |
| Total | 282 | 100% | $13,951.6 | 100% | $49.5 |
| Project Type | Number | % | Cost ($000) | % | $/Project |
|---|---|---|---|---|---|
| Road - New/Widen | 23 | 16% | $2,964.0 | 54% | $128.9 |
| Road - Rehabilitate/Reconstruct | 25 | 18% | $1,847.8 | 33% | $73.9 |
| Road - Resurface/Renewal | 7 | 5% | $31.3 | 1% | $4.5 |
| Bridge/Tunnel | 68 | 49% | $456.2 | 8% | $6.7 |
| ITS | 6 | 4% | $54.9 | 1% | $9.2 |
| Other | 11 | 8% | $172.0 | 3% | $15.6 |
| Total | 140 | 100% | $5,526.2 | 100% | $39.5 |
| Project Size | Number | % | Cost ($000) | % | $/Project |
| <$2 Million | 46 | 33% | $45.3 | 1% | $1.0 |
| $2-10 Million | 48 | 34% | $209.8 | 4% | $4.4 |
| $10-50 Million | 32 | 23% | $748.9 | 14% | $23.4 |
| $50-100 Million | 8 | 6% | $548.0 | 10% | $68.5 |
| >$100 Million | 6 | 4% | $3,974.2 | 72% | $662.4 |
| N/A | 0 | 0% | $0.0 | 0% | $0.0 |
| Total | 140 | 100% | $5,526.2 | 100% | $39.5 |
| Project Type | Number | % | Cost ($000) | % | $/Project |
|---|---|---|---|---|---|
| Road - New/Widen | 22 | 26% | $2,961.8 | 57% | $134.6 |
| Road - Rehabilitate/Reconstruct | 17 | 20% | $1,764.3 | 34% | $103.8 |
| Road - Resurface/Renewal | 5 | 6% | $16.0 | 0% | $3.2 |
| Bridge/Tunnel | 32 | 37% | $365.5 | 7% | $11.4 |
| ITS | 5 | 6% | $54.2 | 1% | $10.8 |
| Other | 5 | 6% | $17.1 | 0% | $3.4 |
| Total | 86 | 100% | $5,178.9 | 100% | $60.2 |
| Project Size | Number | % | Cost ($000) | % | $/Project |
| <$2 Million | 16 | 19% | $19.9 | 0% | $1.2 |
| $2-10 Million | 34 | 40% | $159.7 | 3% | $4.7 |
| $10-50 Million | 24 | 28% | $619.1 | 12% | $25.8 |
| $50-100 Million | 6 | 7% | $404.5 | 8% | $67.4 |
| >$100 Million | 6 | 7% | $3,975.7 | 77% | $662.6 |
| N/A | 0 | 0% | $0.0 | 0% | $0.0 |
| Total | 86 | 100% | $5,178.9 | 100% | $60.2 |
| Project Type | Number | % | Cost ($000) | % | $/Project |
|---|---|---|---|---|---|
| Road - New/Widen | 20 | 29% | $2,567.7 | 58% | $128.4 |
| Road - Rehabilitate/Reconstruct | 11 | 16% | $1,530.8 | 34% | $139.2 |
| Road - Resurface/Renewal | 4 | 6% | $14.5 | 0% | $3.6 |
| Bridge/Tunnel | 26 | 38% | $263.8 | 6% | $10.1 |
| ITS | 3 | 4% | $51.1 | 1% | $17.0 |
| Other | 5 | 7% | $17.1 | 0% | $3.4 |
| Total | 69 | 100% | $4,445.0 | 100% | $64.4 |
| Project Size | Number | % | Cost ($000) | % | $/Project |
| <$2 Million | 12 | 17% | $14.8 | 0% | $1.2 |
| $2-10 Million | 30 | 43% | $142.6 | 3% | $4.8 |
| $10-50 Million | 18 | 26% | $437.3 | 10% | $24.3 |
| $50-100 Million | 4 | 6% | $260.9 | 6% | $65.2 |
| >$100 Million | 5 | 7% | $3,589.4 | 81% | $717.9 |
| N/A | 0 | 0% | $0.0 | 0% | $0.0 |
| Total | 69 | 100% | $4,445.0 | 100% | $64.4 |
| Project Type | Number | % | Cost ($000) | % | $/Project |
|---|---|---|---|---|---|
| Road - New/Widen | 6 | 35% | $71.1 | 23% | $11.9 |
| Road - Rehabilitate/Reconstruct | 5 | 29% | $74.8 | 24% | $15.0 |
| Road - Resurface/Renewal | 1 | 6% | $2.1 | 1% | $2.1 |
| Bridge/Tunnel | 4 | 24% | $166.0 | 53% | $41.5 |
| ITS | 0 | 0% | $0.0 | 0% | $0.0 |
| Other | 1 | 6% | $1.3 | 0% | $1.3 |
| Total | 17 | 100% | $315.3 | 100% | $18.5 |
| Project Size | Number | % | Cost ($000) | % | $/Project |
| <$2 Million | 2 | 12% | $2.6 | 1% | $1.3 |
| $2-10 Million | 4 | 24% | $18.0 | 6% | $4.5 |
| $10-50 Million | 10 | 59% | $150.8 | 48% | $15.1 |
| $50-100 Million | 0 | 0% | $0.0 | 0% | $0.0 |
| >$100 Million | 1 | 6% | $143.9 | 46% | $143.9 |
| N/A | 0 | 0% | $0.0 | 0% | $0.0 |
| Total | 17 | 100% | $315.3 | 100% | $18.5 |
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