| Title |
A HIGHWAY NEEDS ASSESSMENT METHODOLOGY FOR THE FLORIDA TRANSPORTATION PLAN
|
| Accession No |
00639937 |
| Authors |
Li, S-C; Vandervalk, A |
| Conference Title |
4th National Conference on Transportation Planning Methods Applications, Volumes I and II. A Compendium of Papers  |
Corp. Authors
/ Publisher |
Faris (Jerry M)
|
| Editors |
Faris, J M |
| Publication Date |
19930900 |
| Description |
p. 375-389;
Figures(5); References(4); Tables(3) |
| Languages |
English
|
| Abstract |
Determining highway needs on an area-wide basis is an integral aspect of transportation plan development. Florida's coordinated planning procedures were refined by the passage of the State and Regional Planning Act (1984) and the Growth Management Act (1985). Together, these Acts mandate the creation of local and State Comprehensive Plans which establish future transportation network requirements by projecting needs for transportation improvements to ensure that facilities will be in place prior to growth. Recently, for the Florida Transportation Plan (FTP) twenty-year Needs Assessment, Florida Department of Transportation District 4 developed a methodology to analyze needs for Broward, Palm Beach, Martin, St. Lucie and Indian River Counties. The methodology involved computer forecasting models supplemented by a unique program designed to determine the needs in terms of additional lanes required to meet the Florida Statewide Minimum Acceptable Operating Level of Service (LOS) Standards. A different capacity standard used for comprehensive plans and computer modelling results in the fact that model reported volume/capacity ratios cannot be employed to judge highway LOS deficiencies. The program called Additional Laneage Evaluation Program (ADDLNS) bridges the different capacity standards. The first step in the process was to develop a relationship between modelling link attributes and roadway classifications of the Florida Statewide Minimum Acceptable Operating LOS to create an Acceptable LOS Service Flow Rate table. Projected 2001 and 2011 socioeconomic data sets were then loaded onto "existing plus committed" networks in the TRANPLAN based Florida Standard Urban Transportation Model Structure (FSUTMS) to establish demand. ADDLNS, which was specifically developed to use model output volumes to assess highway network deficiencies by incorporating the Acceptable LOS Service Flow Rate table, was utilized to determine the number of additional lanes required. ADDLNS also facilitates the graphic display of roadways needing widening. This paper describes the methodology and results of applying this streamlined and efficient process to determine highway network needs without manual link-by-link capacity calculations. The process is also flexible in adopting different acceptable LOS standards. It was concluded that the methodology is a viable tool for area-wide highway needs assessments. |
Supplemental
Information |
This paper appears in Volume I of the 4th National Conference on Transportation Planning Methods Applications, Session 3b: Statewide Planning - Highway Systems. |
| TRT Terms |
Computer models ; Conferences ; Forecasting ; Highway capacity ; Highways ; Level of service ; Mathematical models ; Needs assessment ; Regional planning ; Regional transportation ; Standards ; States ; Transportation ; Transportation planning ; Urban growth ; Zoning |
| Geographical Terms |
Florida |
| Other Terms |
Growth management; Highway systems; Regional planning (Transportation); State planning; Transportation models |
| Subject Areas |
H13 FORECASTING; H12 PLANNING; I72 Traffic and Transport Planning |
| Availability |
Faris (Jerry M) |
| TRIS Files |
HRIS |
| Database |
TRIS Online |
TRT
