Northern Ireland
🔴 Critical overall
CPD-C Cost
0
🔴 Critical · /100
CPD-D Delivery
0
🔴 Critical · /100
Cost inputs
Portfolio cost overrun
+74.9% (£8.71bn → £15.23bn)
CPD-C
100 − 74.9, floored at 50 = 50
Delivery inputs
Significant delay (scores 20)
14 of 40
Paused (scores 30)
7 of 40
Minor delay (scores 60)
9 of 40
Not started (scores 50)
3 of 40
On track / completed (scores 100)
7 of 40
Combined CPD Score = 60% CPD-D + 40% CPD-C
0
out of 100 · higher = better
Republic of Ireland
🔴 Critical
CPD-C Cost
0
🔴 Critical · /100
CPD-D Delivery
0
🔴 Critical · /100
Cost inputs
Portfolio cost overrun
+85.2% (€26.94bn → €49.90bn)
CPD-C
100 − 85.2, floored at 50 = 50
Delivery inputs
Significant delay (scores 20)
23 of 40
Paused (scores 30)
0 of 40
Minor delay (scores 60)
11 of 40
Not started (scores 50)
1 of 40
On track / completed (scores 100)
5 of 40
Combined CPD Score = 60% CPD-D + 40% CPD-C
0
out of 100 · higher = better
NI — CPD-C: 🔴 Critical (50) | CPD-D: 🔴 Critical (44) | Combined: 46
NI’s delivery picture remains the defining failure — A5 legal block lifted only on 6 Oct 2026 (Court of Appeal) with no construction start date, York Street confirmed at least 11 more years away (NI Assembly Committee, Jun 2026), Casement Park funding gap unresolved. Not a metre of A5 built in nearly two decades. The South is building things, however expensively. The North is mostly still announcing them.
ROI — CPD-C: 🔴 Critical (50) | CPD-D: 🔴 Critical (42) | Combined: 45
ROI’s crisis is pure cost: every €1 announced has become €1.85 across 40 schemes. NCH has missed 19 deadlines with no confirmed opening date (Jun 2026). But schemes are advancing — MetroLink M500 PPP launched, Luas Finglas construction from 2028, Western Rail Corridor in procurement. The South spends recklessly. The North doesn’t spend at all.
Index methodology — two sub-indices, one combined score (same formula as the British Isles hub).
CPD-C (Cost Index): 100 minus the portfolio cost overrun % (estimated cost against announced cost across all 40 schemes), floored at 50.
CPD-D (Delivery Index): each scheme scores by status — completed or on track 100, minor delay 60, not started 50, paused 30, significant delay 20 — averaged across all 40 schemes.
Combined CPD Score = 60% CPD-D + 40% CPD-C, rounded to the nearest integer.
NI: CPD-C = 100 − 72.6 = 27.4, floored at 50. CPD-D = (5×100 + 9×60 + 4×50 + 7×30 + 15×20) ÷ 40 = 1,750 ÷ 40 = 43.75. Combined = 0.6×43.75 + 0.4×50 = 46 / 100.
ROI: CPD-C = 100 − 85.2 = 14.8, floored at 50. CPD-D = (5×100 + 11×60 + 1×50 + 23×20) ÷ 40 = 1,670 ÷ 40 = 42. Combined = 0.6×42 + 0.4×50 = 45 / 100.
Scores are based on official published data (NIAO, DfI, TII, C&AG, NTA). A score of 100 = every scheme delivered on time and on budget. Bands: 75+ Good, 70–74 Concerning, 65–69 Poor, below 65 Critical.