UPDATED RESEARCH TABLES FROM THE TRANSPORTATION AND PM LITERATURE ASSESSMENT
Tables provided at the beginning of each chapter in the Transportation and PM Literature Assessment (Tamura et al., 2005) listed research issues by broad research category. These research issues were used to create the list of 20 research recommendations in Table 1 of this report. The tables from the literature assessment contained a column called "FHWA priority" that remained blank. The intended use of this column was to allow the workshop participants to prioritize these research issues. These tables have now been updated with the research priorities as identified in Table 4 of this report.
Table B-1. List of monitoring research issues from the literature assessment (Table 2-1 of the literature assessment). Priorities are listed as high, medium, or low (H, M, or L); their number (e.g., M1, M2, or M3) corresponds to the priority research topics identified in Table 4 of this Strategic Plan. NS means the research issue was not selected as one of the low-, medium-, or high-priority research needs in this Strategic Plan.
| 2. Monitoring issues | Strategic Research Documentsa | Recently Completed Work | Ongoing or Planned Work | FHWA Priority (as numbered in Table 4) |
|---|---|---|---|---|
| 2.1 Measurement methods | ||||
| 2.1.1 Improving measurements and characterization of carbonaceous aerosols | NARSTO, CENR | X | X | M7 |
| 2.1.2 Improving measurements and characterization of semi-volatile aerosols | FHWA P3, NARSTO | X | X | |
| 2.1.3 Evaluating method accuracy, precision, and comparability for PM measurements | NARSTO, CENR | X | X | |
| 2.2 Monitoring networks and uses | ||||
| 2.2.1 Identification of PM2.5 nonattainment areas | FHWA P1 | X | NS | |
| 2.2.2 Improving the spatial extent and temporal resolution of PM and precursor monitors and instruments | NARSTO, CENR, NRC | X | X | M8 |
| 2.2.3 Integrating transportation concerns into existing monitoring networks | FHWA P2 | X | NS | |
| 2.3 Monitoring and characterizing PM near roadways | X | X | H1 |
a Project numbers (P#) are identified for areas identified in the 2000-2004 FHWA strategic work plan for PM research; see Appendix C for a summary listing of the 2000-2004 projects.
Table B‑2. List of characterization research issues from the literature assessment (Table 3-1 of the literature assessment). Priorities are listed as high, medium, or low (H, M, or L); their number (e.g., M1, M2, or M3) corresponds to the priority research topics identified in Table 4 of this Strategic Plan. NS means the research issue was not selected as one of the low-, medium-, or high-priority research needs in this Strategic Plan..
| 3. Characterization Issues | Strategic Research Documentsa | Recently Completed Work | Ongoing or Planned Work | FHWA Priority (as numbered in Table 4) |
|---|---|---|---|---|
| 3.1 Evaluation and improvement of the performance of air quality models | FHWA P9, NARSTO, CENR, EMEP, NRC | X | X | L1 |
| 3.2 Understanding transportation emissions contribution to PM concentrations | FHWA P5 | X | X | L4 |
| 3.3 Updating source profiles used in modeling | FHWA P4, CENR, NARSTO | X | X | NS |
| 3.4 Separating diesel and gasoline PM contributions | CENR | X | X | NS |
| 3.5 Estimating the contribution of transportation to PM exposure | X | X | NS |
a Project numbers (P#) are identified for areas identified in the 2000-2004 FHWA strategic work plan for PM research; see Appendix C for a summary listing of the 2000-2004 projects.
Table B-3. List of emissions research issues from the literature assessment (Table 4-2 of the literature assessment). Priorities are listed as high, medium, or low (H, M, or L); their number (e.g., M1, M2, or M3) corresponds to the priority research topics identified in Table 4 of this Strategic Plan. NS means the research issue was not selected as one of the low-, medium-, or high-priority research needs in this Strategic Plan.
| 4. Mobile Source Emissions Measurements | Strategic Research Documentsa | Recently Completed Work | Ongoing or Planned Work | FHWA Priority (as numbered in Table 4) |
|---|---|---|---|---|
| 4.1 Exhaust Measurement Methodologies | ||||
| 4.1.1 Measurement of PM mass | NARSTO, NRC |
X | X | NS |
| 4.1.2 Measurement of ammonia | NARSTO, NRC |
X | X | NS |
| 4.1.3 Measurement of PM properties | NARSTO, NRC |
X | X | NS |
| 4.2 Collection of Exhaust Emissions Data | ||||
| 4.2.1 HDDV emissions | FHWA P6, NRC emissions modeling review |
X | X | M9 and L7 |
| 4.2.2 Gross-emitting light-duty gasoline vehicles (LDGVs) | FHWA P7, NRC emissions modeling review |
X | X | M9 |
| 4.2.3 Ammonia | CENR, NRC |
X | X | NS |
| 4.2.4 Ultrafines and speciated organics | NARSTO, NRC |
X | X | L2 |
| 4.3 Collection of Fugitive Emissions Data | M1 | |||
| 4.3.1 Resuspended road surface material | FHWA P8, NARSTO | X | X | |
| 4.3.2 Direct emissions from brake wear and tire wear | X | X |
a Project numbers (P#) are identified for areas identified in the 2000-2004 FHWA strategic work plan for PM research; see Appendix C for a summary listing of the 2000-2004 projects.
Table B-4. List of modeling research issues from the literature assessment (Table 5-1 of the literature assessment). Priorities are listed as high, medium, or low (H, M, or L); their number (e.g., M1, M2, or M3) corresponds to the priority research topics identified in Table 4 of this Strategic Plan.
| 5. Emissions Models and Hotspot Models | Strategic Research Documentsa | Recently Completed Work | Ongoing or Planned Work | FHWA Priority (as numbered in Table 4) |
|---|---|---|---|---|
| 5.1 Improving Emissions Modeling | ||||
| 5.1.1 Improvement of model input data | FHWA P10 | M6 | ||
| 5.1.2 Development of new models | FHWA P9, P11; NARSTO; NRC emissions modeling review |
X | X | H3 |
| 5.1.3 Model evaluations | FHWA P9, P11; NARSTO; NRC emissions modeling review |
X | X | |
| 5.2 PM Hot-spot Modeling | ||||
| 5.2.1 Development of hot-spot models | X | X | H2 | |
| 5.2.2 Evaluation of hot-spot models | X | X |
a Project numbers (P#) are identified for areas identified in the 2000-2004 FHWA strategic work plan for PM research; see Appendix C for a summary listing of the 2000-2004 projects.
Table B-5. List of control strategy research issues from the literature assessment (Table 6-1 of the literature assessment). Priorities are listed as high, medium, or low (H, M, or L); their number (e.g., M1, M2, or M3) corresponds to the priority research topics identified in Table 4 of this Strategic Plan.
| 6. Control Strategies | Strategic Research Documentsa | Recently Completed Work | Ongoing or Planned Work | FHWA Priority (as numbered in Table 4) |
|---|---|---|---|---|
| 6.1 Control Strategy Compilations and Cost-Effectiveness Analyses | M2 | |||
| 6.1.1 Available compilations | FHWA P12, P13 | X | X | |
| 6.1.2 Information quality and cost-effectiveness methodologies | X | |||
| 6.2 Evaluations of Specific Control Types | H4 | |||
| 6.2.1 Transportation control measures (TCMs) | FHWA P12-P14 | X | X | |
| 6.2.2 Emission control technology retrofits | FHWA P12-P14 | X | X | |
| 6.2.3 Replacement of older vehicles with newer vehicles | FHWA P12-P14 | X | X | |
| 6.2.4 Use of different fuels and lubricants | FHWA P12-P14 | X | X | |
| 6.2.5 Vehicle inspection & maintenance (I&M) | FHWA P12-P14 | X | X | |
| 6.2.6 Reductions in fugitive dust from roads | FHWA P12-P14 | X | X |
a Project numbers (P#) are identified for areas identified in the 2000-2004 FHWA strategic work plan for PM research; see Appendix C for a summary listing of the 2000-2004 projects.
