Table 2.
Number of Individual Studies within each Group (Noise Source × Outcome Measure × Intervention Type).
| Number of Peer Reviewed Papers | Number of Non-Peer Reviewed Papers | Total Papers per Group | |
|---|---|---|---|
| ROAD TRAFFIC NOISE SOURCES | |||
| Outcome: Annoyance | |||
| A Source Intervention | 7 | 3 | 10 |
| B Path Intervention | 4 | 2 | 6 |
| C New/Closed Infrastructure | 1 | 1 | 2 |
| D Other Physical | 6 | 1 | 7 |
| Outcome: Sleep Disturbance | |||
| A Source Intervention | 1 | - | 1 |
| B Path Intervention | 1 | 1 | 2 |
| C New/Closed Infrastructure | 2 | - | 2 |
| D Other Physical | 1 | - | 1 |
| Outcome: Cardiovascular Effects | |||
| D Other Physical | 4 | - | 4 |
| Outcome: Modelled Change in Exposure/Effect * | |||
| A Source Intervention | 1 | 1 | 2 |
| AIRCRAFT NOISE SOURCES | |||
| Outcome: Annoyance | |||
| B Path Intervention | 1 | - | 1 |
| C New/Closed Infrastructure | 2 | 1 | 3 |
| Outcome: Sleep Disturbance | |||
| C New/Closed Infrastructure | 1 | 1 | 2 |
| Outcome: Cognitive Development in Children | |||
| C New/Closed Infrastructure | 1 | - | 1 |
| Outcome: Modelled Change in Exposure/Effect * | |||
| A Source Intervention | 1 | - | 1 |
| RAIL NOISE SOURCES | |||
| Outcome: Annoyance | |||
| A Source Intervention | - | 1 | 1 |
| C New/Closed Infrastructure | 1 | - | 1 |
| E Education/Communication | - | 1 | 1 |
* The modelled outcomes are described in Supplementary File 4.