ID	Label	ID	Label	ID	Label
0	Cost overrun	21	Cross-sectional study	42	Forecasting infrastructure resilience
1	Quantitative spatial economics	22	Spatial structure	43	Price-difference approach
2	Prioritizing highway defragmentation	23	Critical transportation infrastructure	44	Sustainable development
3	Local development	24	Panel data evidence	45	Retail travel pattern
4	Land value	25	Massive non-orthogonal multiple access	46	Traveler characteristics
5	Regional economic growth	26	Low-volume roads	47	Operational effect
6	New transport infrastructure	27	Planning transport infrastructure	48	Noise reduction
7	Public-private partnership	28	Comparative evaluation	49	Changing transport system
8	Infrastructure change region	29	Transportation infrastructure asset	50	Mega region economic development
9	Recent laboratory research	30	Temporal effect	51	Civil infrastructure security upgrade
10	Microbial engineering	31	Infrastructure network	52	Political volatility
11	hiv-1 subtype	32	Discounted registration fee	53	Greenhouse gas emissions reduction
12	Industrial location	33	Environmental benefit	54	Spatiotemporal variation
11	Developing-country analysis	34	Service delivery	55	Transportation infrastructure expenditure
14	Urban growth	35	Competitive sky	56	Resource allocation
15	Road transport technologies	36	CO2 transport technologies	57	Transport infrastructure investment
16	Peak travel	37	Railway infrastructure	58	Transport policies
17	Urban surrounding	38	Long-range transportation	59	International evidence
18	biomass-derived acid	39	Decoupling urban transport	60	Occupancy model
19	Transport infrastructure development	40	Complex urban infrastructure deformation monitoring	61	Solar energy
20	transport infrastructure slope	41	Integrated approach	62	Public investment research