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Table 5 Summary results for follow-up headways at single-lane roundabouts
From: Gap-accepteance parameters for roundabouts: a systematic review
study name | subgroup within study | mean [s] | sample size | st error [s] | Z - value | p - value | Q | I2 [%] |
|---|---|---|---|---|---|---|---|---|
Gazzarri et al. [45] | A1 | 2.59 | 500 | 0.04 | 64.35 | 0.00 | 33.90 | 20.40 |
Gazzarri et al. [45] | A2 | 2.65 | 155 | 0.06 | 47.81 | 0.00 | 33.90 | 20.40 |
Gazzarri et al. [45] | A3 | 2.76 | 190 | 0.05 | 55.95 | 0.00 | 33.90 | 20.40 |
Gazzarri et al. [45] | A4 | 2.52 | 226 | 0.05 | 47.35 | 0.00 | 33.90 | 20.40 |
Nicolosi et al. [49] | B1 | 3.15 | 386 | 0.03 | 104.89 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C1 | 3.20 | 637 | 0.04 | 73.42 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C2 | 3.80 | 28 | 0.11 | 35.55 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C3 | 3.60 | 1225 | 0.04 | 82.32 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C4 | 3.10 | 522 | 0.08 | 40.47 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C5 | 3.20 | 39 | 0.03 | 127.39 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C6 | 3.10 | 41 | 0.09 | 33.96 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C7 | 3.10 | 262 | 0.05 | 65.98 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C8 | 2.90 | 33 | 0.12 | 23.58 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C9 | 2.90 | 86 | 0.06 | 52.73 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C10 | 2.60 | 126 | 0.04 | 60.46 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C11 | 3.50 | 753 | 0.25 | 14.25 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C12 | 3.30 | 334 | 0.03 | 105.00 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C13 | 3.40 | 2282 | 0.05 | 70.62 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C14 | 4.30 | 120 | 0.24 | 17.90 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C15 | 3.50 | 453 | 0.22 | 16.01 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C16 | 3.10 | 80 | 0.06 | 50.18 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C17 | 3.40 | 400 | 0.19 | 17.76 | 0.00 | 33.90 | 20.40 |
Rodegerdts et al. [61] | C18 | 3.30 | 438 | 0.12 | 27.82 | 0.00 | 33.90 | 20.40 |
Zheng et al. [17] | D1 | 2.60 | 1223 | 0.04 | 64.95 | 0.00 | 33.90 | 20.40 |
Zheng et al. [17] | D2 | 3.80 | 1198 | 0.08 | 50.59 | 0.00 | 33.90 | 20.40 |
Zheng et al. [17] | D3 | 2.30 | 828 | 0.03 | 66.18 | 0.00 | 33.90 | 20.40 |
Zheng et al. [17] | D4 | 3.10 | 768 | 0.08 | 39.05 | 0.00 | 33.90 | 20.40 |
Qu X et al. [69] | E1 | 2.76 | 171 | 0.05 | 58.21 | 0.00 | 33.90 | 20.40 |
summary effect (random) | Â | 3.10 | Â | 0.07 | 41.82 | 0.00 | 33.90 | 20.40 |