Fig. 6 | Scientific Reports

Fig. 6

From: Dual effects of digital technology on high quality development of road transportation in Heilongjiang Province China

Fig. 6The alternative text for this image may have been generated using AI.

2D kernel density maps for the co-evolution of UDTL and HQDRT in 2011, 2015, 2019 and 2022. Note: The vertical axis represents the kernel density values of the synergistic development of UDTL and HQDRT, while the horizontal axis indicates the coupling coordination degree of UDTL and HQDRT.

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