The Economics of Urban Tree Inventory Systems: Fort Worth, A Case Study

Article Figures & Data

Table 1.

Calculated Labor for Establishing a Computerized Inventory for 10,000 Trees Using Data Developed from Fort Worth Study

Item	Person-hours (PHRS)	PHRS PER Tree	Labor Cost of $5.00/hr. wage
Pre-inventory training time for data collection persons (2 persons × 4 hours/person)	8	.0008	$0,004
Travel to and from beginning and end of data collection (½ hr/day × 2 persons × 48 days)	48	.0048	0.024
Labor required to record data on data collection sheets (48 days × 8 hrs/day × 2 persons)	768	.0768	0.384
Labor required to digitize information (30 sec/tree × 10,000 trees ÷ 3600 sec/hour)	84	.0084	0.042
Labor required to key-punch data (15 sec/tree × 10,000 trees ÷ 3600 sec/hour)	42	.0042	0.021
TOTAL	950	.095	0.475