Restorational Research on a Checker-patterned Street System in the Capital Heian-kyo

1988 Fiscal Year Final Research Report Summary

• Project/Area Number: 61410010
• Research Category: Grant-in-Aid for General Scientific Research (A)
• Allocation Type: Single-year Grants
• Research Field: 考古学(含先史学)
• Research Institution: Kyoto National Museum
• Principal Investigator: MORI Ikuo Kyoto National Museum Archaeological Department, 学芸課, 考古室長 (50000477)
• Co-Investigator(Kenkyū-buntansha): SIMOSAKA Mamoru Kyoto National Museum, 学芸課, 主任研究官 (10150038) ; NAMBA Yozxo Kyoto National Museum (70189223)
• Project Period (FY): 1986 – 1988
• Keywords: Heian-kyo / Heian period / 1:1000 scale maps / 座標値 / 千分の1大梯尺地形図 / 延喜式

Research Abstract

Excavative research on Heian-kyo has been actively carried out. In order to excavate an area as large as Heian-kyo, it is necessary to prepare large maps of small scale with which the street system and the relation between several sites can be obserred. As eight maps have been drawn on a scale of 1:1000 since 1986,19maps altogerher are now available, but 48maps are necessary to cover all the Heian-kyo area Nontheless, we were able to locate the original streets of Heian-kyo by marking the location of excavated streets, ditches, and earthen walls on 1:1000 scale maps and py referring to co-ordinate values proved by the excavation. Because the elevation of the northern area of Heian-kyo was about 40 meters higher than the southern area, people in Heian period had to make small rivers confluent and correct surveying errors in order to puild a street system in the city.